]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/fragments/SettingsFragment.java
Switch to EasyList block lists. https://redmine.stoutner.com/issues/136.
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / fragments / SettingsFragment.java
index 75e008ad12cceaf6a9c61d6e7e0f7f20fe2ee563..cff09bee795f40df1d15e4e9734c7d3e654351cd 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2017 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2016-2018 Soren Stoutner <soren@stoutner.com>.
  *
  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
  *
@@ -20,6 +20,7 @@
 package com.stoutner.privacybrowser.fragments;
 
 import android.annotation.SuppressLint;
+import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Build;
 import android.os.Bundle;
@@ -30,6 +31,7 @@ import android.view.View;
 import android.webkit.WebView;
 
 import com.stoutner.privacybrowser.R;
+import com.stoutner.privacybrowser.activities.MainWebViewActivity;
 
 public class SettingsFragment extends PreferenceFragment {
     private SharedPreferences.OnSharedPreferenceChangeListener preferencesListener;
@@ -44,45 +46,76 @@ public class SettingsFragment extends PreferenceFragment {
         savedPreferences = getPreferenceScreen().getSharedPreferences();
 
         // Get handles for the preferences we need to modify.
-        final Preference javaScriptEnabled = findPreference("javascript_enabled");
-        final Preference firstPartyCookiesEnabled = findPreference("first_party_cookies_enabled");
-        final Preference thirdPartyCookiesEnabled = findPreference("third_party_cookies_enabled");
-        final Preference domStorageEnabled = findPreference("dom_storage_enabled");
+        final Preference javaScriptPreference = findPreference("javascript_enabled");
+        final Preference firstPartyCookiesPreference = findPreference("first_party_cookies_enabled");
+        final Preference thirdPartyCookiesPreference = findPreference("third_party_cookies_enabled");
+        final Preference domStoragePreference = findPreference("dom_storage_enabled");
+        final Preference saveFormDataPreference = findPreference("save_form_data_enabled");
         final Preference userAgentPreference = findPreference("user_agent");
-        final Preference customUserAgent = findPreference("custom_user_agent");
+        final Preference customUserAgentPreference = findPreference("custom_user_agent");
+        final Preference incognitoModePreference = findPreference("incognito_mode");
+        final Preference doNotTrackPreference = findPreference("do_not_track");
+        final Preference easyListPreference = findPreference("easylist");
+        final Preference easyPrivacyPreference = findPreference("easyprivacy");
+        final Preference fanboyAnnoyanceListPreference = findPreference("fanboy_annoyance_list");
+        final Preference fanboySocialBlockingListPreference = findPreference("fanboy_social_blocking_list");
+        final Preference proxyThroughOrbotPreference = findPreference("proxy_through_orbot");
         final Preference torHomepagePreference = findPreference("tor_homepage");
         final Preference torSearchPreference = findPreference("tor_search");
         final Preference torSearchCustomURLPreference = findPreference("tor_search_custom_url");
         final Preference searchPreference = findPreference("search");
         final Preference searchCustomURLPreference = findPreference("search_custom_url");
+        final Preference fullScreenBrowsingModePreference = findPreference("full_screen_browsing_mode");
         final Preference hideSystemBarsPreference = findPreference("hide_system_bars");
         final Preference translucentNavigationBarPreference = findPreference("translucent_navigation_bar");
+        final Preference clearEverythingPreference = findPreference("clear_everything");
+        final Preference clearCookiesPreference = findPreference("clear_cookies");
+        final Preference clearDomStoragePreference = findPreference("clear_dom_storage");
+        final Preference clearFormDataPreference = findPreference("clear_form_data");
+        final Preference clearCachePreference = findPreference("clear_cache");
         final Preference homepagePreference = findPreference("homepage");
         final Preference defaultFontSizePreference = findPreference("default_font_size");
+        final Preference swipeToRefreshPreference = findPreference("swipe_to_refresh");
+        final Preference displayAdditionalAppBarIconsPreference = findPreference("display_additional_app_bar_icons");
+        final Preference darkThemePreference = findPreference("dark_theme");
+        final Preference nightModePreference = findPreference("night_mode");
+        final Preference displayWebpageImagesPreference = findPreference("display_webpage_images");
 
         // Set dependencies.
-        domStorageEnabled.setDependency("javascript_enabled");
         torHomepagePreference.setDependency("proxy_through_orbot");
         torSearchPreference.setDependency("proxy_through_orbot");
-        hideSystemBarsPreference.setDependency("enable_full_screen_browsing_mode");
+        hideSystemBarsPreference.setDependency("full_screen_browsing_mode");
 
-        // Get strings from the preferences.
+        // Get Strings from the preferences.
         String torSearchString = savedPreferences.getString("tor_search", "https://3g2upl4pq6kufc4m.onion/html/?q=");
         String searchString = savedPreferences.getString("search", "https://duckduckgo.com/html/?q=");
 
         // Get booleans from the preferences.
-        boolean javaScriptEnabledBoolean = savedPreferences.getBoolean("javascript_enabled", false);
-        boolean firstPartyCookiesEnabledBoolean = savedPreferences.getBoolean("first_party_cookies_enabled", false);
-        boolean thirdPartyCookiesEnabledBoolean = savedPreferences.getBoolean("third_party_cookies_enabled", false);
-
-        // Only enable `third_party_cookies_enabled` if `first_party_cookies_enabled` is `true` and API >= 21.
-        thirdPartyCookiesEnabled.setEnabled(firstPartyCookiesEnabledBoolean && (Build.VERSION.SDK_INT >= 21));
+        final boolean javaScriptEnabled = savedPreferences.getBoolean("javascript_enabled", false);
+        boolean firstPartyCookiesEnabled = savedPreferences.getBoolean("first_party_cookies_enabled", false);
+        boolean thirdPartyCookiesEnabled = savedPreferences.getBoolean("third_party_cookies_enabled", false);
+        boolean fanboyAnnoyanceListEnabled = savedPreferences.getBoolean("fanboy_annoyance_list", true);
+        boolean fanboySocialBlockingEnabled = savedPreferences.getBoolean("fanboy_social_blocking_list", true);
+        boolean proxyThroughOrbot = savedPreferences.getBoolean("proxy_through_orbot", false);
+        boolean fullScreenBrowsingMode = savedPreferences.getBoolean("full_screen_browsing_mode", false);
+        boolean hideSystemBars = savedPreferences.getBoolean("hide_system_bars", false);
+        boolean clearEverything = savedPreferences.getBoolean("clear_everything", true);
+        final boolean nightMode = savedPreferences.getBoolean("night_mode", false);
+
+        // Only enable the third-party preference if first-party cookies are enabled and API >= 21.
+        thirdPartyCookiesPreference.setEnabled(firstPartyCookiesEnabled && (Build.VERSION.SDK_INT >= 21));
+
+        // Only enable the DOM storage preference if either JavaScript or Night Mode is enabled.
+        domStoragePreference.setEnabled(javaScriptEnabled || nightMode);
+
+        // Only enable Fanboy's social blocking list preference if Fanboy's annoyance list is disabled.
+        fanboySocialBlockingListPreference.setEnabled(!fanboyAnnoyanceListEnabled);
 
         // We need to inflated a `WebView` to get the default user agent.
         LayoutInflater inflater = getActivity().getLayoutInflater();
-        // `@SuppressLint("InflateParams")` removes the warning about using `null` as the `ViewGroup`, which in this case makes sense because we don't want to display `bare_webview` on the screen.  `false` does not attach the view to the root.
+        // `@SuppressLint("InflateParams")` removes the warning about using `null` as the `ViewGroup`, which in this case makes sense because we don't want to display `bare_webview` on the screen.
         @SuppressLint("InflateParams") View bareWebViewLayout = inflater.inflate(R.layout.bare_webview, null, false);
-        final WebView bareWebView = (WebView) bareWebViewLayout.findViewById(R.id.bare_webview);
+        final WebView bareWebView = bareWebViewLayout.findViewById(R.id.bare_webview);
 
         // Set the current user-agent as the summary text for the "user_agent" preference when the preference screen is loaded.
         switch (savedPreferences.getString("user_agent", "PrivacyBrowser/1.0")) {
@@ -102,9 +135,9 @@ public class SettingsFragment extends PreferenceFragment {
                 break;
         }
 
-        // Set the summary text for "custom_user_agent" (the default is "PrivacyBrowser/1.0") and enable it if "user_agent" it set to "Custom user agent".
-        customUserAgent.setSummary(savedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"));
-        customUserAgent.setEnabled(userAgentPreference.getSummary().equals("Custom user agent"));
+        // Set the summary text for "customUserAgentPreference" (the default is `PrivacyBrowser/1.0`) and enable it if `userAgentPreference` it set to `Custom user agent`.
+        customUserAgentPreference.setSummary(savedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"));
+        customUserAgentPreference.setEnabled(userAgentPreference.getSummary().equals("Custom user agent"));
 
 
         // Set the Tor homepage URL as the summary text for the `tor_homepage` preference when the preference screen is loaded.  The default is DuckDuckGo: `https://3g2upl4pq6kufc4m.onion`.
@@ -124,7 +157,7 @@ public class SettingsFragment extends PreferenceFragment {
         torSearchCustomURLPreference.setSummary(savedPreferences.getString("tor_search_custom_url", ""));
 
         // Enable the Tor custom URL search options only if proxying through Orbot and the search is set to `Custom URL`.
-        torSearchCustomURLPreference.setEnabled(savedPreferences.getBoolean("proxy_through_orbot", false) && torSearchString.equals("Custom URL"));
+        torSearchCustomURLPreference.setEnabled(proxyThroughOrbot && torSearchString.equals("Custom URL"));
 
 
         // Set the search URL as the summary text for the search preference when the preference screen is loaded.  The default is `https://duckduckgo.com/html/?q=`.
@@ -141,9 +174,14 @@ public class SettingsFragment extends PreferenceFragment {
         searchCustomURLPreference.setEnabled(searchString.equals("Custom URL"));
 
 
-        // Enable `transparent_navigation_bar` only if full screen browsing mode is enabled and `hide_system_bars` is disabled.
-        translucentNavigationBarPreference.setEnabled(savedPreferences.getBoolean("enable_full_screen_browsing_mode", false) && !savedPreferences.getBoolean("hide_system_bars", false));
+        // Enable `translucentNavigationBarPreference` only if full screen browsing mode is enabled and `hide_system_bars` is disabled.
+        translucentNavigationBarPreference.setEnabled(fullScreenBrowsingMode && !hideSystemBars);
 
+        // Set the status of the `Clear and Exit` preferences.
+        clearCookiesPreference.setEnabled(!clearEverything);
+        clearDomStoragePreference.setEnabled(!clearEverything);
+        clearFormDataPreference.setEnabled(!clearEverything);
+        clearCachePreference.setEnabled(!clearEverything);
 
         // Set the homepage URL as the summary text for the `Homepage` preference when the preference screen is loaded.  The default is `https://duckduckgo.com`.
         homepagePreference.setSummary(savedPreferences.getString("homepage", "https://duckduckgo.com"));
@@ -151,224 +189,1247 @@ public class SettingsFragment extends PreferenceFragment {
         // Set the default font size as the summary text for the `Default Font Size` preference when the preference screen is loaded.  The default is `100`.
         defaultFontSizePreference.setSummary(savedPreferences.getString("default_font_size", "100") + "%%");
 
+        // Disable `javaScriptPreference` if `nightModeBoolean` is true.  JavaScript will be enabled for all web pages.
+        javaScriptPreference.setEnabled(!nightMode);
+
+        // Set the `javaScriptPreference` icon.
+        if (javaScriptEnabled || nightMode) {
+            javaScriptPreference.setIcon(R.drawable.javascript_enabled);
+        } else {
+            javaScriptPreference.setIcon(R.drawable.privacy_mode);
+        }
+
+        // Set the `firstPartyCookiesPreference` icon.
+        if (firstPartyCookiesEnabled) {
+            firstPartyCookiesPreference.setIcon(R.drawable.cookies_enabled);
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                firstPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_dark);
+            } else {
+                firstPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_light);
+            }
+        }
+
+        // Set the `thirdPartyCookiesPreference` icon.
+        if (firstPartyCookiesEnabled && Build.VERSION.SDK_INT >= 21) {
+            if (thirdPartyCookiesEnabled) {
+                thirdPartyCookiesPreference.setIcon(R.drawable.cookies_warning);
+            } else {
+                if (MainWebViewActivity.darkTheme) {
+                    thirdPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_dark);
+                } else {
+                    thirdPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_light);
+                }
+            }
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                thirdPartyCookiesPreference.setIcon(R.drawable.cookies_ghosted_dark);
+            } else {
+                thirdPartyCookiesPreference.setIcon(R.drawable.cookies_ghosted_light);
+            }
+        }
+
+        // Set the `domStoragePreference` icon.
+        if (javaScriptEnabled || nightMode) {  // The preference is enabled.
+            if (savedPreferences.getBoolean("dom_storage_enabled", false)) {  // DOM storage is enabled.
+                domStoragePreference.setIcon(R.drawable.dom_storage_enabled);
+            } else {  // DOM storage is disabled.
+                if (MainWebViewActivity.darkTheme) {
+                    domStoragePreference.setIcon(R.drawable.dom_storage_disabled_dark);
+                } else {
+                    domStoragePreference.setIcon(R.drawable.dom_storage_disabled_light);
+                }
+            }
+        } else {  // The preference is disabled.  The icon should be ghosted.
+            if (MainWebViewActivity.darkTheme) {
+                domStoragePreference.setIcon(R.drawable.dom_storage_ghosted_dark);
+            } else {
+                domStoragePreference.setIcon(R.drawable.dom_storage_ghosted_light);
+            }
+        }
+
+        // Set the `saveFormDataPreference` icon.
+        if (savedPreferences.getBoolean("save_form_data_enabled", false)) {
+            saveFormDataPreference.setIcon(R.drawable.form_data_enabled);
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                saveFormDataPreference.setIcon(R.drawable.form_data_disabled_dark);
+            } else {
+                saveFormDataPreference.setIcon(R.drawable.form_data_disabled_light);
+            }
+        }
+
+        // Set the `customUserAgentPreference` icon.
+        if (customUserAgentPreference.isEnabled()) {
+            if (MainWebViewActivity.darkTheme) {
+                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_enabled_dark);
+            } else {
+                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_enabled_light);
+            }
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_ghosted_dark);
+            } else {
+                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_ghosted_light);
+            }
+        }
+
+        // Set the `incognitoModePreference` icon.
+        if (savedPreferences.getBoolean("incognito_mode", false)) {
+            if (MainWebViewActivity.darkTheme) {
+                incognitoModePreference.setIcon(R.drawable.incognito_mode_enabled_dark);
+            } else {
+                incognitoModePreference.setIcon(R.drawable.incognito_mode_enabled_light);
+            }
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                incognitoModePreference.setIcon(R.drawable.incognito_mode_disabled_dark);
+            } else {
+                incognitoModePreference.setIcon(R.drawable.incognito_mode_disabled_light);
+            }
+        }
+
+        // Set the `doNotTrackPreference` icon.
+        if (savedPreferences.getBoolean("do_not_track", false)) {
+            if (MainWebViewActivity.darkTheme) {
+                doNotTrackPreference.setIcon(R.drawable.block_tracking_enabled_dark);
+            } else {
+                doNotTrackPreference.setIcon(R.drawable.block_tracking_enabled_light);
+            }
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                doNotTrackPreference.setIcon(R.drawable.block_tracking_disabled_dark);
+            } else {
+                doNotTrackPreference.setIcon(R.drawable.block_tracking_disabled_light);
+            }
+        }
 
-        // Set the `javascript_enabled` icon.
-        if (javaScriptEnabledBoolean) {
-            javaScriptEnabled.setIcon(R.drawable.javascript_enabled);
+        // Set the EasyList icon.
+        if (savedPreferences.getBoolean("easylist", true)) {
+            if (MainWebViewActivity.darkTheme) {
+                easyListPreference.setIcon(R.drawable.block_ads_enabled_dark);
+            } else {
+                easyListPreference.setIcon(R.drawable.block_ads_enabled_light);
+            }
         } else {
-            javaScriptEnabled.setIcon(R.drawable.privacy_mode);
+            if (MainWebViewActivity.darkTheme) {
+                easyListPreference.setIcon(R.drawable.block_ads_disabled_dark);
+            } else {
+                easyListPreference.setIcon(R.drawable.block_ads_disabled_light);
+            }
         }
 
-        // Set the `first_party_cookies_enabled` icon.
-        if (firstPartyCookiesEnabledBoolean) {
-            firstPartyCookiesEnabled.setIcon(R.drawable.cookies_enabled);
+        // Set the EasyPrivacy icon.
+        if (savedPreferences.getBoolean("easyprivacy", true)) {
+            if (MainWebViewActivity.darkTheme) {
+                easyPrivacyPreference.setIcon(R.drawable.block_tracking_enabled_dark);
+            } else {
+                easyPrivacyPreference.setIcon(R.drawable.block_tracking_enabled_light);
+            }
         } else {
-            firstPartyCookiesEnabled.setIcon(R.drawable.cookies_disabled);
+            if (MainWebViewActivity.darkTheme) {
+                easyPrivacyPreference.setIcon(R.drawable.block_tracking_disabled_dark);
+            } else {
+                easyPrivacyPreference.setIcon(R.drawable.block_tracking_disabled_light);
+            }
         }
 
-        // Set the `third_party_cookies_enabled` icon.
-        if (firstPartyCookiesEnabledBoolean && Build.VERSION.SDK_INT >= 21) {
-            if (thirdPartyCookiesEnabledBoolean) {
-                thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_warning);
+        // Set the Fanboy list icons.
+        if (fanboyAnnoyanceListEnabled) {
+            if (MainWebViewActivity.darkTheme) {
+                // Set the Fanboy annoyance list icon.
+                fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_enabled_dark);
+
+                // Set the Fanboy social blocking list icon.
+                fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_ghosted_dark);
             } else {
-                thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_disabled);
+                // Set the Fanboy annoyance list icon.
+                fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_enabled_light);
+
+                // Set the Fanboy social blocking list icon.
+                fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_ghosted_light);
             }
         } else {
-            thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_ghosted);
+            if (MainWebViewActivity.darkTheme) {
+                // Set the Fanboy annoyance list icon.
+                fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_disabled_dark);
+
+                // Set the Fanboy social blocking list icon.
+                if (fanboySocialBlockingEnabled) {
+                    fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_enabled_dark);
+                } else {
+                    fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_disabled_dark);
+                }
+            } else {
+                // Set the Fanboy annoyance list icon.
+                fanboyAnnoyanceListPreference.setIcon(R.drawable.block_ads_disabled_light);
+
+                // Set the Fanboy social blocking list icon.
+                if (fanboySocialBlockingEnabled) {
+                    fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_enabled_light);
+                } else {
+                    fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_disabled_light);
+                }
+            }
         }
 
-        // Set the `dom_storage_enabled` icon.
-        if (javaScriptEnabledBoolean) {
-            if (savedPreferences.getBoolean("dom_storage_enabled", false)) {
-                domStorageEnabled.setIcon(R.drawable.dom_storage_enabled);
+        // Set the Tor icons according to the theme.
+        if (proxyThroughOrbot) {  // Proxying is enabled.
+            if (MainWebViewActivity.darkTheme) {
+                proxyThroughOrbotPreference.setIcon(R.drawable.orbot_enabled_dark);
+                torHomepagePreference.setIcon(R.drawable.home_enabled_dark);
+                torSearchPreference.setIcon(R.drawable.search_enabled_dark);
+
+                // Set the custom search icon.
+                if (torSearchCustomURLPreference.isEnabled()) {
+                    torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_dark);
+                } else {
+                    torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_dark);
+                }
             } else {
-                domStorageEnabled.setIcon(R.drawable.dom_storage_disabled);
+                proxyThroughOrbotPreference.setIcon(R.drawable.orbot_enabled_light);
+                torHomepagePreference.setIcon(R.drawable.home_enabled_light);
+                torSearchPreference.setIcon(R.drawable.search_enabled_light);
+
+                // Set the custom search icon.
+                if (torSearchCustomURLPreference.isEnabled()) {
+                    torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_light);
+                } else {
+                    torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_light);
+                }
+            }
+        } else {  // Proxying is disabled.
+            if (MainWebViewActivity.darkTheme) {
+                proxyThroughOrbotPreference.setIcon(R.drawable.orbot_disabled_dark);
+                torHomepagePreference.setIcon(R.drawable.home_ghosted_dark);
+                torSearchPreference.setIcon(R.drawable.search_ghosted_dark);
+                torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_dark);
+            } else {
+                proxyThroughOrbotPreference.setIcon(R.drawable.orbot_disabled_light);
+                torHomepagePreference.setIcon(R.drawable.home_ghosted_light);
+                torSearchPreference.setIcon(R.drawable.search_ghosted_light);
+                torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_light);
+            }
+        }
+
+        // Set the `searchCustomURLPreference` icon.
+        if (searchCustomURLPreference.isEnabled()) {
+            if (MainWebViewActivity.darkTheme) {
+                searchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_dark);
+            } else {
+                searchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_light);
             }
         } else {
-            domStorageEnabled.setIcon(R.drawable.dom_storage_ghosted);
+            if (MainWebViewActivity.darkTheme) {
+                searchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_dark);
+            } else {
+                searchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_light);
+            }
         }
 
+        // Set the full screen browsing mode icons.
+        if (fullScreenBrowsingMode) {  // `fullScreenBrowsingModeBoolean` is `true`.
+            // Set the `fullScreenBrowsingModePreference` icon according to the theme.
+            if (MainWebViewActivity.darkTheme) {
+                fullScreenBrowsingModePreference.setIcon(R.drawable.full_screen_enabled_dark);
+            } else {
+                fullScreenBrowsingModePreference.setIcon(R.drawable.full_screen_enabled_light);
+            }
+
+            if (hideSystemBars) {  // `hideSystemBarsBoolean` is `true`.
+                // Set the icons according to the theme.
+                if (MainWebViewActivity.darkTheme) {
+                    hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_enabled_dark);
+                    translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_dark);
+                } else {
+                    hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_enabled_light);
+                    translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_light);
+                }
+            } else {  // `hideSystemBarsBoolean` is `false`.
+                // Set the `hideSystemBarsPreference` icon according to the theme.
+                if (MainWebViewActivity.darkTheme) {
+                    // Set the icon for `hideSystemBarsPreference`.
+                    hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_disabled_dark);
+
+                    // Set the icon for `translucentNavigationBarPreference`.
+                    if (savedPreferences.getBoolean("translucent_navigation_bar", true)) {
+                        translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_enabled_dark);
+                    } else {
+                        translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_disabled_dark);
+                    }
+                } else {
+                    // Set the icon for `hideSystemBarsPreference`.
+                    hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_disabled_light);
+
+                    // Set the icon for `translucentNavigationBarPreference`.
+                    if (savedPreferences.getBoolean("translucent_navigation_bar", true)) {
+                        translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_enabled_light);
+                    } else {
+                        translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_disabled_light);
+                    }
+                }
+            }
+        } else {  // `fullScreenBrowsingModeBoolean` is `false`.
+            // Set the icons according to the theme.
+            if (MainWebViewActivity.darkTheme) {
+                fullScreenBrowsingModePreference.setIcon(R.drawable.full_screen_disabled_dark);
+                hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_ghosted_dark);
+                translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_dark);
+            } else {
+                fullScreenBrowsingModePreference.setIcon(R.drawable.full_screen_disabled_light);
+                hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_ghosted_light);
+                translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_light);
+            }
+        }
+
+        // Set the `clearEverythingPreference` icon.
+        if (clearEverything) {
+            if (MainWebViewActivity.darkTheme) {
+                clearEverythingPreference.setIcon(R.drawable.clear_everything_enabled_dark);
+            } else {
+                clearEverythingPreference.setIcon(R.drawable.clear_everything_enabled_light);
+            }
+        } else {
+            clearEverythingPreference.setIcon(R.drawable.clear_everything_disabled);
+        }
+
+        // Set the `clearCookiesPreference` icon.
+        if (clearEverything || savedPreferences.getBoolean("clear_cookies", true)) {
+            if (MainWebViewActivity.darkTheme) {
+                clearCookiesPreference.setIcon(R.drawable.cookies_cleared_dark);
+            } else {
+                clearCookiesPreference.setIcon(R.drawable.cookies_cleared_light);
+            }
+        } else {
+            clearCookiesPreference.setIcon(R.drawable.cookies_warning);
+        }
+
+        // Set the `clearDomStoragePreference` icon.
+        if (clearEverything || savedPreferences.getBoolean("clear_dom_storage", true)) {
+            if (MainWebViewActivity.darkTheme) {
+                clearDomStoragePreference.setIcon(R.drawable.dom_storage_cleared_dark);
+            } else {
+                clearDomStoragePreference.setIcon(R.drawable.dom_storage_cleared_light);
+            }
+        } else {
+            clearDomStoragePreference.setIcon(R.drawable.dom_storage_warning);
+        }
+
+        // Set the `clearFormDataPreference` icon.
+        if (clearEverything || savedPreferences.getBoolean("clear_form_data", true)) {
+            if (MainWebViewActivity.darkTheme) {
+                clearFormDataPreference.setIcon(R.drawable.form_data_cleared_dark);
+            } else {
+                clearFormDataPreference.setIcon(R.drawable.form_data_cleared_light);
+            }
+        } else {
+            clearFormDataPreference.setIcon(R.drawable.form_data_warning);
+        }
+
+        // Set the `clearCachePreference` icon.
+        if (clearEverything || savedPreferences.getBoolean("clear_cache", true)) {
+            if (MainWebViewActivity.darkTheme) {
+                clearCachePreference.setIcon(R.drawable.cache_cleared_dark);
+            } else {
+                clearCachePreference.setIcon(R.drawable.cache_cleared_light);
+            }
+        } else {
+            clearCachePreference.setIcon(R.drawable.cache_warning);
+        }
+
+        // Set the `swipeToRefreshPreference` icon.
+        if (savedPreferences.getBoolean("swipe_to_refresh", false)) {
+            if (MainWebViewActivity.darkTheme) {
+                swipeToRefreshPreference.setIcon(R.drawable.refresh_enabled_dark);
+            } else {
+                swipeToRefreshPreference.setIcon(R.drawable.refresh_enabled_light);
+            }
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                swipeToRefreshPreference.setIcon(R.drawable.refresh_disabled_dark);
+            } else {
+                swipeToRefreshPreference.setIcon(R.drawable.refresh_disabled_light);
+            }
+        }
+
+        // Set the `displayAdditionalAppBarIconsPreference` icon.
+        if (savedPreferences.getBoolean("display_additional_app_bar_icons", false)) {
+            if (MainWebViewActivity.darkTheme) {
+                displayAdditionalAppBarIconsPreference.setIcon(R.drawable.more_enabled_dark);
+            } else {
+                displayAdditionalAppBarIconsPreference.setIcon(R.drawable.more_enabled_light);
+            }
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                displayAdditionalAppBarIconsPreference.setIcon(R.drawable.more_disabled_dark);
+            } else {
+                displayAdditionalAppBarIconsPreference.setIcon(R.drawable.more_disabled_light);
+            }
+        }
+
+        // Set the `darkThemePreference` icon.
+        if (savedPreferences.getBoolean("dark_theme", false)) {
+            darkThemePreference.setIcon(R.drawable.theme_dark);
+        } else {
+            darkThemePreference.setIcon(R.drawable.theme_light);
+        }
+
+        // Set the `nightModePreference` icon.
+        if (nightMode) {
+            if (MainWebViewActivity.darkTheme) {
+                nightModePreference.setIcon(R.drawable.night_mode_enabled_dark);
+            } else {
+                nightModePreference.setIcon(R.drawable.night_mode_enabled_light);
+            }
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                nightModePreference.setIcon(R.drawable.night_mode_disabled_dark);
+            } else {
+                nightModePreference.setIcon(R.drawable.night_mode_disabled_light);
+            }
+        }
+
+        // Set the `displayWebpageImagesPreference` icon.
+        if (savedPreferences.getBoolean("display_webpage_images", true)) {
+            if (MainWebViewActivity.darkTheme) {
+                displayWebpageImagesPreference.setIcon(R.drawable.images_enabled_dark);
+            } else {
+                displayWebpageImagesPreference.setIcon(R.drawable.images_enabled_light);
+            }
+        } else {
+            if (MainWebViewActivity.darkTheme) {
+                displayWebpageImagesPreference.setIcon(R.drawable.images_disabled_dark);
+            } else {
+                displayWebpageImagesPreference.setIcon(R.drawable.images_disabled_light);
+            }
+        }
+
+
         // Listen for preference changes.
-        preferencesListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
-            @Override
-            // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.  We know.
-            @SuppressLint("SetJavaScriptEnabled")
-            public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
-
-                switch (key) {
-                    case "javascript_enabled":
-                        // Update the icons.
-                        if (sharedPreferences.getBoolean("javascript_enabled", false)) {
-                            // Update the icon for `javascript_enabled`.
-                            javaScriptEnabled.setIcon(R.drawable.javascript_enabled);
-
-                            // Update the icon for `dom_storage_enabled`.
-                            if (sharedPreferences.getBoolean("dom_storage_enabled", false)) {
-                                domStorageEnabled.setIcon(R.drawable.dom_storage_enabled);
+        preferencesListener = (SharedPreferences sharedPreferences, String key) -> {
+            switch (key) {
+                case "javascript_enabled":
+                    // Update the icons and the DOM storage preference status.
+                    if (sharedPreferences.getBoolean("javascript_enabled", false)) {  // The JavaScript preference is enabled.
+                        // Update the icon for the JavaScript preference.
+                        javaScriptPreference.setIcon(R.drawable.javascript_enabled);
+
+                        // Update the status of the DOM storage preference.
+                        domStoragePreference.setEnabled(true);
+
+                        // Update the icon for the DOM storage preference.
+                        if (sharedPreferences.getBoolean("dom_storage_enabled", false)) {
+                            domStoragePreference.setIcon(R.drawable.dom_storage_enabled);
+                        } else {
+                            if (MainWebViewActivity.darkTheme) {
+                                domStoragePreference.setIcon(R.drawable.dom_storage_disabled_dark);
                             } else {
-                                domStorageEnabled.setIcon(R.drawable.dom_storage_disabled);
+                                domStoragePreference.setIcon(R.drawable.dom_storage_disabled_light);
                             }
-                        } else {  // `javascript_enabled` is `false`.
-                            // Update the icon for `javascript_enabled`.
-                            javaScriptEnabled.setIcon(R.drawable.privacy_mode);
-
-                            // Set the icon for `dom_storage_disabled` to be ghosted.
-                            domStorageEnabled.setIcon(R.drawable.dom_storage_ghosted);
                         }
-                        break;
+                    } else {  // The JavaScript preference is disabled.
+                        // Update the icon for the JavaScript preference.
+                        javaScriptPreference.setIcon(R.drawable.privacy_mode);
 
-                    case "first_party_cookies_enabled":
-                        // Update the icons for `first_party_cookies_enabled` and `third_party_cookies_enabled`.
-                        if (sharedPreferences.getBoolean("first_party_cookies_enabled", false)) {
-                            // Set the icon for `first_party_cookies_enabled`.
-                            firstPartyCookiesEnabled.setIcon(R.drawable.cookies_enabled);
+                        // Update the status of the DOM storage preference.
+                        domStoragePreference.setEnabled(false);
 
-                            // Update the icon for `third_party_cookies_enabled`.
-                            if (Build.VERSION.SDK_INT >= 21) {
-                                if (sharedPreferences.getBoolean("third_party_cookies_enabled", false)) {
-                                    thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_warning);
+                        // Set the icon for DOM storage preference to be ghosted.
+                        if (MainWebViewActivity.darkTheme) {
+                            domStoragePreference.setIcon(R.drawable.dom_storage_ghosted_dark);
+                        } else {
+                            domStoragePreference.setIcon(R.drawable.dom_storage_ghosted_light);
+                        }
+                    }
+                    break;
+
+                case "first_party_cookies_enabled":
+                    // Update the icons for `first_party_cookies_enabled` and `third_party_cookies_enabled`.
+                    if (sharedPreferences.getBoolean("first_party_cookies_enabled", false)) {
+                        // Set the icon for `first_party_cookies_enabled`.
+                        firstPartyCookiesPreference.setIcon(R.drawable.cookies_enabled);
+
+                        // Update the icon for `third_party_cookies_enabled`.
+                        if (Build.VERSION.SDK_INT >= 21) {
+                            if (sharedPreferences.getBoolean("third_party_cookies_enabled", false)) {
+                                thirdPartyCookiesPreference.setIcon(R.drawable.cookies_warning);
+                            } else {
+                                if (MainWebViewActivity.darkTheme) {
+                                    thirdPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_dark);
                                 } else {
-                                    thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_disabled);
+                                    thirdPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_light);
                                 }
+                            }
+                        } else {
+                            if (MainWebViewActivity.darkTheme) {
+                                thirdPartyCookiesPreference.setIcon(R.drawable.cookies_ghosted_dark);
                             } else {
-                                thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_ghosted);
+                                thirdPartyCookiesPreference.setIcon(R.drawable.cookies_ghosted_light);
                             }
-                        } else {  // `first_party_cookies_enabled` is `false`.
-                            // Update the icon for `first_party_cookies_enabled`.
-                            firstPartyCookiesEnabled.setIcon(R.drawable.cookies_disabled);
+                        }
+                    } else {  // `first_party_cookies_enabled` is `false`.
+                        // Update the icon for `first_party_cookies_enabled`.
+                        if (MainWebViewActivity.darkTheme) {
+                            firstPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_dark);
+                        } else {
+                            firstPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_light);
+                        }
 
-                            // Set the icon for `third_party_cookies_enabled` to be ghosted.
-                            thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_ghosted);
+                        // Set the icon for `third_party_cookies_enabled` to be ghosted.
+                        if (MainWebViewActivity.darkTheme) {
+                            thirdPartyCookiesPreference.setIcon(R.drawable.cookies_ghosted_dark);
+                        } else {
+                            thirdPartyCookiesPreference.setIcon(R.drawable.cookies_ghosted_light);
+                        }
+                    }
+
+                    // Enable `third_party_cookies_enabled` if `first_party_cookies_enabled` is `true` and API >= 21.
+                    thirdPartyCookiesPreference.setEnabled(sharedPreferences.getBoolean("first_party_cookies_enabled", false) && (Build.VERSION.SDK_INT >= 21));
+                    break;
+
+                case "third_party_cookies_enabled":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("third_party_cookies_enabled", false)) {
+                        thirdPartyCookiesPreference.setIcon(R.drawable.cookies_warning);
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            thirdPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_dark);
+                        } else {
+                            thirdPartyCookiesPreference.setIcon(R.drawable.cookies_disabled_light);
                         }
+                    }
+                    break;
+
+                case "dom_storage_enabled":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("dom_storage_enabled", false)) {
+                        domStoragePreference.setIcon(R.drawable.dom_storage_enabled);
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            domStoragePreference.setIcon(R.drawable.dom_storage_disabled_dark);
+                        } else {
+                            domStoragePreference.setIcon(R.drawable.dom_storage_disabled_light);
+                        }
+                    }
+                    break;
+
+                case "save_form_data_enabled":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("save_form_data_enabled", false)) {
+                        saveFormDataPreference.setIcon(R.drawable.form_data_enabled);
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            saveFormDataPreference.setIcon(R.drawable.form_data_disabled_dark);
+                        } else {
+                            saveFormDataPreference.setIcon(R.drawable.form_data_disabled_light);
+                        }
+                    }
+
+                case "user_agent":
+                    String userAgentString = sharedPreferences.getString("user_agent", "PrivacyBrowser/1.0");
+
+                    switch (userAgentString) {
+                        case "WebView default user agent":
+                            // Display the user agent as the summary text for `userAgentPreference`.
+                            userAgentPreference.setSummary(bareWebView.getSettings().getUserAgentString());
+
+                            // Disable `customUserAgentPreference`.
+                            customUserAgentPreference.setEnabled(false);
+
+                            // Set the `customUserAgentPreference` icon according to the theme.
+                            if (MainWebViewActivity.darkTheme) {
+                                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_ghosted_dark);
+                            } else {
+                                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_ghosted_light);
+                            }
+                            break;
+
+                        case "Custom user agent":
+                            // Display `Custom user agent` as the summary text for `userAgentPreference`.
+                            userAgentPreference.setSummary(R.string.custom_user_agent);
+
+                            // Enable `customUserAgentPreference`.
+                            customUserAgentPreference.setEnabled(true);
+
+                            // Set the `customUserAgentPreference` icon according to the theme.
+                            if (MainWebViewActivity.darkTheme) {
+                                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_enabled_dark);
+                            } else {
+                                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_enabled_light);
+                            }
+                            break;
+
+                        default:
+                            // Display the user agent as the summary text for `userAgentPreference`.
+                            userAgentPreference.setSummary(sharedPreferences.getString("user_agent", "PrivacyBrowser/1.0"));
+
+                            // Disable `customUserAgentPreference`.
+                            customUserAgentPreference.setEnabled(false);
+
+                            // Set the `customUserAgentPreference` icon according to the theme.
+                            if (MainWebViewActivity.darkTheme) {
+                                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_ghosted_dark);
+                            } else {
+                                customUserAgentPreference.setIcon(R.drawable.custom_user_agent_ghosted_light);
+                            }
+                            break;
+                    }
+                    break;
+
+                case "custom_user_agent":
+                    // Set the new custom user agent as the summary text for `custom_user_agent`.  The default is `PrivacyBrowser/1.0`.
+                    customUserAgentPreference.setSummary(sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"));
+                    break;
+
+                case "incognito_mode":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("incognito_mode", false)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            incognitoModePreference.setIcon(R.drawable.incognito_mode_enabled_dark);
+                        } else {
+                            incognitoModePreference.setIcon(R.drawable.incognito_mode_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            incognitoModePreference.setIcon(R.drawable.incognito_mode_disabled_dark);
+                        } else {
+                            incognitoModePreference.setIcon(R.drawable.incognito_mode_disabled_light);
+                        }
+                    }
+                    break;
+
+                case "do_not_track":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("do_not_track", false)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            doNotTrackPreference.setIcon(R.drawable.block_tracking_enabled_dark);
+                        } else {
+                            doNotTrackPreference.setIcon(R.drawable.block_tracking_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            doNotTrackPreference.setIcon(R.drawable.block_tracking_disabled_dark);
+                        } else {
+                            doNotTrackPreference.setIcon(R.drawable.block_tracking_disabled_light);
+                        }
+                    }
+
+                    break;
+
+                case "easylist":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("easylist", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            easyListPreference.setIcon(R.drawable.block_ads_enabled_dark);
+                        } else {
+                            easyListPreference.setIcon(R.drawable.block_ads_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            easyListPreference.setIcon(R.drawable.block_ads_disabled_dark);
+                        } else {
+                            easyListPreference.setIcon(R.drawable.block_ads_disabled_light);
+                        }
+                    }
+                    break;
+
+                case "easyprivacy":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("easyprivacy", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            easyPrivacyPreference.setIcon(R.drawable.block_tracking_enabled_dark);
+                        } else {
+                            easyPrivacyPreference.setIcon(R.drawable.block_tracking_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            easyPrivacyPreference.setIcon(R.drawable.block_tracking_disabled_dark);
+                        } else {
+                            easyPrivacyPreference.setIcon(R.drawable.block_tracking_disabled_light);
+                        }
+                    }
+                    break;
+
+                case "fanboy_annoyance_list":
+                    boolean currentFanboyAnnoyanceList = sharedPreferences.getBoolean("fanboy_annoyance_list", true);
+                    boolean currentFanboySocialBlockingList = sharedPreferences.getBoolean("fanboy_social_blocking_list", true);
+
+                    // Update the Fanboy icons.
+                    if (sharedPreferences.getBoolean("fanboy_annoyance_list", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            // Update the Fanboy's annoyance list icon.
+                            fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_enabled_dark);
+
+                            // Update the Fanboy's social blocking list icon.
+                            fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_ghosted_dark);
+                        } else {
+                            // Update the Fanboy's annoyance list icon.
+                            fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_enabled_light);
+
+                            // Update the Fanboy's social blocking list icon.
+                            fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_ghosted_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            // Update the Fanboy's annoyance list icon.
+                            fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_disabled_dark);
+
+                            // Update the Fanboy's social blocking list icon.
+                            if (currentFanboySocialBlockingList) {
+                                fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_enabled_dark);
+                            } else {
+                                fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_disabled_dark);
+                            }
+                        } else {
+                            // Update the Fanboy's annoyance list icon.
+                            fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_disabled_light);
+
+                            // Update the Fanboy's social blocking list icon.
+                            if (currentFanboySocialBlockingList) {
+                                fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_enabled_light);
+                            } else {
+                                fanboyAnnoyanceListPreference.setIcon(R.drawable.social_media_disabled_light);
+                            }
+                        }
+                    }
+
+                    // Only enable Fanboy's social blocking list preference if Fanboy's annoyance list preference is disabled.
+                    fanboySocialBlockingListPreference.setEnabled(!currentFanboyAnnoyanceList);
+                    break;
+
+                case "fanboy_social_blocking_list":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("fanboy_social_blocking_list", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_enabled_dark);
+                        } else {
+                            fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_disabled_dark);
+                        } else {
+                            fanboySocialBlockingListPreference.setIcon(R.drawable.social_media_disabled_light);
+                        }
+                    }
+                    break;
+
+                case "proxy_through_orbot":
+                    // Get current settings.
+                    boolean currentProxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
+                    String currentTorSearchString = sharedPreferences.getString("tor_search", "https://3g2upl4pq6kufc4m.onion/html/?q=");
+
+                    // Enable the Tor custom URL search option only if `currentProxyThroughOrbot` is true and the search is set to `Custom URL`.
+                    torSearchCustomURLPreference.setEnabled(currentProxyThroughOrbot && currentTorSearchString.equals("Custom URL"));
+
+                    // Update the icons.
+                    if (currentProxyThroughOrbot) {
+                        // Set the Tor icons according to the theme.
+                        if (MainWebViewActivity.darkTheme) {
+                            proxyThroughOrbotPreference.setIcon(R.drawable.orbot_enabled_dark);
+                            torHomepagePreference.setIcon(R.drawable.home_enabled_dark);
+                            torSearchPreference.setIcon(R.drawable.search_enabled_dark);
+
+                            // Set the `torSearchCustomURLPreference` icon.
+                            if (torSearchCustomURLPreference.isEnabled()) {
+                                torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_dark);
+                            } else {
+                                torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_dark);
+                            }
+                        } else {
+                            proxyThroughOrbotPreference.setIcon(R.drawable.orbot_enabled_light);
+                            torHomepagePreference.setIcon(R.drawable.home_enabled_light);
+                            torSearchPreference.setIcon(R.drawable.search_enabled_light);
+
+                            // Set the `torSearchCustomURLPreference` icon.
+                            if (torSearchCustomURLPreference.isEnabled()) {
+                                torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_light);
+                            } else {
+                                torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_light);
+                            }
+                        }
+                    } else {  // Proxy through Orbot is disabled.
+                        if (MainWebViewActivity.darkTheme) {
+                            proxyThroughOrbotPreference.setIcon(R.drawable.orbot_disabled_dark);
+                            torHomepagePreference.setIcon(R.drawable.home_ghosted_dark);
+                            torSearchPreference.setIcon(R.drawable.search_ghosted_dark);
+                            torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_dark);
+                        } else {
+                            proxyThroughOrbotPreference.setIcon(R.drawable.orbot_disabled_light);
+                            torHomepagePreference.setIcon(R.drawable.home_ghosted_light);
+                            torSearchPreference.setIcon(R.drawable.search_ghosted_light);
+                            torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_light);
+                        }
+                    }
+                    break;
+
+                case "tor_homepage":
+                    // Set the new tor homepage URL as the summary text for the `tor_homepage` preference.  The default is DuckDuckGo:  `https://3g2upl4pq6kufc4m.onion`.
+                    torHomepagePreference.setSummary(sharedPreferences.getString("tor_homepage", "https://3g2upl4pq6kufc4m.onion"));
+                    break;
+
+                case "tor_search":
+                    // Get the present search string.
+                    String presentTorSearchString = sharedPreferences.getString("tor_search", "https://3g2upl4pq6kufc4m.onion/html/?q=");
+
+                    // Update the preferences.
+                    if (presentTorSearchString.equals("Custom URL")) {
+                        // Use `R.string.custom_url`, which is translated, as the summary instead of the array value, which isn't.
+                        torSearchPreference.setSummary(R.string.custom_url);
+
+                        // Enable `torSearchCustomURLPreference`.
+                        torSearchCustomURLPreference.setEnabled(true);
+
+                        // Update the `torSearchCustomURLPreference` icon.
+                        if (MainWebViewActivity.darkTheme) {
+                            torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_dark);
+                        } else {
+                            torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_light);
+                        }
+                    } else {
+                        // Set the array value as the summary text.
+                        torSearchPreference.setSummary(presentTorSearchString);
+
+                        // Disable `torSearchCustomURLPreference`.
+                        torSearchCustomURLPreference.setEnabled(false);
+
+                        // Update the `torSearchCustomURLPreference` icon.
+                        if (MainWebViewActivity.darkTheme) {
+                            torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_dark);
+                        } else {
+                            torSearchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_light);
+                        }
+                    }
+                    break;
+
+                case "tor_search_custom_url":
+                    // Set the summary text for `tor_search_custom_url`.
+                    torSearchCustomURLPreference.setSummary(sharedPreferences.getString("tor_search_custom_url", ""));
+                    break;
 
-                        // Enable `third_party_cookies_enabled` if `first_party_cookies_enabled` is `true` and API >= 21.
-                        thirdPartyCookiesEnabled.setEnabled(sharedPreferences.getBoolean("first_party_cookies_enabled", false) && (Build.VERSION.SDK_INT >= 21));
-                        break;
+                case "search":
+                    // Store the new search string.
+                    String newSearchString = sharedPreferences.getString("search", "https://duckduckgo.com/html/?q=");
 
-                    case "third_party_cookies_enabled":
+                    // Update `searchPreference` and `searchCustomURLPreference`.
+                    if (newSearchString.equals("Custom URL")) {  // `Custom URL` is selected.
+                        // Set the summary text to `R.string.custom_url`, which is translated.
+                        searchPreference.setSummary(R.string.custom_url);
+
+                        // Enable `searchCustomURLPreference`.
+                        searchCustomURLPreference.setEnabled(true);
+
+                        // Set the `searchCustomURLPreference` according to the theme.
+                        if (MainWebViewActivity.darkTheme) {
+                            searchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_dark);
+                        } else {
+                            searchCustomURLPreference.setIcon(R.drawable.search_custom_url_enabled_light);
+                        }
+                    } else {  // `Custom URL` is not selected.
+                        // Set the summary text to `newSearchString`.
+                        searchPreference.setSummary(newSearchString);
+
+                        // Disable `searchCustomURLPreference`.
+                        searchCustomURLPreference.setEnabled(false);
+
+                        // Set the `searchCustomURLPreference` according to the theme.
+                        if (MainWebViewActivity.darkTheme) {
+                            searchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_dark);
+                        } else {
+                            searchCustomURLPreference.setIcon(R.drawable.search_custom_url_ghosted_light);
+                        }
+                    }
+                    break;
+
+                case "search_custom_url":
+                    // Set the new custom search URL as the summary text for `search_custom_url`.  The default is `""`.
+                    searchCustomURLPreference.setSummary(sharedPreferences.getString("search_custom_url", ""));
+                    break;
+
+                case "full_screen_browsing_mode":
+                    if (sharedPreferences.getBoolean("full_screen_browsing_mode", false)) {
+                        // Set the `fullScreenBrowsingModePreference` icon according to the theme.
+                        if (MainWebViewActivity.darkTheme) {
+                            fullScreenBrowsingModePreference.setIcon(R.drawable.full_screen_enabled_dark);
+                        } else {
+                            fullScreenBrowsingModePreference.setIcon(R.drawable.full_screen_enabled_light);
+                        }
+
+                        if (sharedPreferences.getBoolean("hide_system_bars", false)) {  // `hide_system_bars` is `true`.
+                            // Disable `translucentNavigationBarPreference`.
+                            translucentNavigationBarPreference.setEnabled(false);
+
+                            // Set the icons according to the theme.
+                            if (MainWebViewActivity.darkTheme) {
+                                hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_enabled_dark);
+                                translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_dark);
+                            } else {
+                                hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_enabled_light);
+                                translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_light);
+                            }
+                        } else {  // `hide_system_bars` is `false`.
+                            // Enable `translucentNavigationBarPreference`.
+                            translucentNavigationBarPreference.setEnabled(true);
+
+                            // Set the icons according to the theme.
+                            if (MainWebViewActivity.darkTheme) {  // Use the dark theme.
+                                // Set the `hideSystemBarsPreference` icon.
+                                hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_disabled_dark);
+
+                                // Set the `translucentNavigationBarPreference` icon.
+                                if (sharedPreferences.getBoolean("translucent_navigation_bar", true)) {
+                                    translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_enabled_dark);
+                                } else {
+                                    translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_disabled_dark);
+                                }
+                            } else {  // Use the light theme.
+                                // Set the `hideSystemBarsPreference` icon.
+                                hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_disabled_light);
+
+                                // Set the `translucentNavigationBarPreference` icon.
+                                if (sharedPreferences.getBoolean("translucent_navigation_bar", true)) {
+                                    translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_enabled_light);
+                                } else {
+                                    translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_disabled_light);
+                                }
+                            }
+                        }
+                    } else {  // `full_screen_browsing_mode` is false.
+                        // Disable `translucentNavigationBarPreference`.
+                        translucentNavigationBarPreference.setEnabled(false);
+
+                        // Update the icons according to the theme.
+                        if (MainWebViewActivity.darkTheme) {
+                            fullScreenBrowsingModePreference.setIcon(R.drawable.full_screen_disabled_dark);
+                            hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_ghosted_dark);
+                            translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_dark);
+                        } else {
+                            fullScreenBrowsingModePreference.setIcon(R.drawable.full_screen_disabled_light);
+                            hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_ghosted_light);
+                            translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_light);
+                        }
+                    }
+                    break;
+
+                case "hide_system_bars":
+                    if (sharedPreferences.getBoolean("hide_system_bars", false)) {
+                        // Disable `translucentNavigationBarPreference`.
+                        translucentNavigationBarPreference.setEnabled(false);
+
+                        // Set the icons according to the theme.
+                        if (MainWebViewActivity.darkTheme) {
+                            hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_enabled_dark);
+                            translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_dark);
+                        } else {
+                            hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_enabled_light);
+                            translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_ghosted_light);
+                        }
+                    } else {  // `hide_system_bars` is false.
+                        // Enable `translucentNavigationBarPreference`.
+                        translucentNavigationBarPreference.setEnabled(true);
+
+                        // Set the icons according to the theme.
+                        if (MainWebViewActivity.darkTheme) {
+                            // Set the `hideSystemBarsPreference` icon.
+                            hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_disabled_dark);
+
+                            // Set the `translucentNavigationBarPreference` icon.
+                            if (sharedPreferences.getBoolean("translucent_navigation_bar", true)) {
+                                translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_enabled_dark);
+                            } else {
+                                translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_disabled_dark);
+                            }
+                        } else {
+                            // Set the `hideSystemBarsPreference` icon.
+                            hideSystemBarsPreference.setIcon(R.drawable.hide_system_bars_disabled_light);
+
+                            // Set the `translucentNavigationBarPreference` icon.
+                            if (sharedPreferences.getBoolean("translucent_navigation_bar", true)) {
+                                translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_enabled_light);
+                            } else {
+                                translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_disabled_light);
+                            }
+                        }
+                    }
+                    break;
+
+                case "translucent_navigation_bar":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("translucent_navigation_bar", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_enabled_dark);
+                        } else {
+                            translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_disabled_dark);
+                        } else {
+                            translucentNavigationBarPreference.setIcon(R.drawable.translucent_bar_disabled_light);
+                        }
+                    }
+                    break;
+
+                case "clear_everything":
+                    // Store the new `clear_everything` status
+                    boolean newClearEverythingBoolean = sharedPreferences.getBoolean("clear_everything", true);
+
+                    // Update the status of the `Clear and Exit` preferences.
+                    clearCookiesPreference.setEnabled(!newClearEverythingBoolean);
+                    clearDomStoragePreference.setEnabled(!newClearEverythingBoolean);
+                    clearFormDataPreference.setEnabled(!newClearEverythingBoolean);
+                    clearCachePreference.setEnabled(!newClearEverythingBoolean);
+
+                    // Update the `clearEverythingPreference` icon.
+                    if (newClearEverythingBoolean) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearEverythingPreference.setIcon(R.drawable.clear_everything_enabled_dark);
+                        } else {
+                            clearEverythingPreference.setIcon(R.drawable.clear_everything_enabled_light);
+                        }
+                    } else {
+                        clearEverythingPreference.setIcon(R.drawable.clear_everything_disabled);
+                    }
+
+                    // Update the `clearCookiesPreference` icon.
+                    if (newClearEverythingBoolean || sharedPreferences.getBoolean("clear_cookies", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearCookiesPreference.setIcon(R.drawable.cookies_cleared_dark);
+                        } else {
+                            clearCookiesPreference.setIcon(R.drawable.cookies_cleared_light);
+                        }
+                    } else {
+                        clearCookiesPreference.setIcon(R.drawable.cookies_warning);
+                    }
+
+                    // Update the `clearDomStoragePreference` icon.
+                    if (newClearEverythingBoolean || sharedPreferences.getBoolean("clear_dom_storage", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearDomStoragePreference.setIcon(R.drawable.dom_storage_cleared_dark);
+                        } else {
+                            clearDomStoragePreference.setIcon(R.drawable.dom_storage_cleared_light);
+                        }
+                    } else {
+                        clearDomStoragePreference.setIcon(R.drawable.dom_storage_warning);
+                    }
+
+                    // Update the `clearFormDataPreference` icon.
+                    if (newClearEverythingBoolean || sharedPreferences.getBoolean("clear_form_data", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearFormDataPreference.setIcon(R.drawable.form_data_cleared_dark);
+                        } else {
+                            clearFormDataPreference.setIcon(R.drawable.form_data_cleared_light);
+                        }
+                    } else {
+                        clearFormDataPreference.setIcon(R.drawable.form_data_warning);
+                    }
+
+                    // Update the `clearCachePreference` icon.
+                    if (newClearEverythingBoolean || sharedPreferences.getBoolean("clear_cache", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearCachePreference.setIcon(R.drawable.cache_cleared_dark);
+                        } else {
+                            clearCachePreference.setIcon(R.drawable.cache_cleared_light);
+                        }
+                    } else {
+                        clearCachePreference.setIcon(R.drawable.cache_warning);
+                    }
+                    break;
+
+                case "clear_cookies":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("clear_cookies", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearCookiesPreference.setIcon(R.drawable.cookies_cleared_dark);
+                        } else {
+                            clearCookiesPreference.setIcon(R.drawable.cookies_cleared_light);
+                        }
+                    } else {
+                        clearCookiesPreference.setIcon(R.drawable.cookies_warning);
+                    }
+                    break;
+
+                case "clear_dom_storage":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("clear_dom_storage", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearDomStoragePreference.setIcon(R.drawable.dom_storage_cleared_dark);
+                        } else {
+                            clearDomStoragePreference.setIcon(R.drawable.dom_storage_cleared_light);
+                        }
+                    } else {
+                        clearDomStoragePreference.setIcon(R.drawable.dom_storage_warning);
+                    }
+                    break;
+
+                case "clear_form_data":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("clear_form_data", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearFormDataPreference.setIcon(R.drawable.form_data_cleared_dark);
+                        } else {
+                            clearFormDataPreference.setIcon(R.drawable.form_data_cleared_light);
+                        }
+                    } else {
+                        clearFormDataPreference.setIcon(R.drawable.form_data_warning);
+                    }
+                    break;
+
+                case "clear_cache":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("clear_cache", true)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            clearCachePreference.setIcon(R.drawable.cache_cleared_dark);
+                        } else {
+                            clearCachePreference.setIcon(R.drawable.cache_cleared_light);
+                        }
+                    } else {
+                        clearCachePreference.setIcon(R.drawable.cache_warning);
+                    }
+                    break;
+
+                case "homepage":
+                    // Set the new homepage URL as the summary text for the Homepage preference.  The default is `https://www.duckduckgo.com`.
+                    homepagePreference.setSummary(sharedPreferences.getString("homepage", "https://www.duckduckgo.com"));
+                    break;
+
+                case "default_font_size":
+                    // Update the summary text of `default_font_size`.
+                    defaultFontSizePreference.setSummary(sharedPreferences.getString("default_font_size", "100") + "%%");
+                    break;
+
+                case "swipe_to_refresh":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("swipe_to_refresh", false)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            swipeToRefreshPreference.setIcon(R.drawable.refresh_enabled_dark);
+                        } else {
+                            swipeToRefreshPreference.setIcon(R.drawable.refresh_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            swipeToRefreshPreference.setIcon(R.drawable.refresh_disabled_dark);
+                        } else {
+                            swipeToRefreshPreference.setIcon(R.drawable.refresh_disabled_light);
+                        }
+                    }
+                    break;
+
+                case "display_additional_app_bar_icons":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) {
+                        if (MainWebViewActivity.darkTheme) {
+                            displayAdditionalAppBarIconsPreference.setIcon(R.drawable.more_enabled_dark);
+                        } else {
+                            displayAdditionalAppBarIconsPreference.setIcon(R.drawable.more_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            displayAdditionalAppBarIconsPreference.setIcon(R.drawable.more_disabled_dark);
+                        } else {
+                            displayAdditionalAppBarIconsPreference.setIcon(R.drawable.more_disabled_light);
+                        }
+                    }
+                    break;
+
+                case "dark_theme":
+                    // Update the icon.
+                    if (sharedPreferences.getBoolean("dark_theme", false)) {
+                        darkThemePreference.setIcon(R.drawable.theme_dark);
+                    } else {
+                        darkThemePreference.setIcon(R.drawable.theme_light);
+                    }
+
+                    // Create an `Intent` to restart Privacy Browser.
+                    Intent intent = getActivity().getParentActivityIntent();
+
+                    // Assert that `intent` is not `null` to remove the lint error below.
+                    assert intent != null;
+
+                    // `Intent.FLAG_ACTIVITY_CLEAR_TASK` removes all activities from the stack.  It requires `Intent.FLAG_ACTIVITY_NEW_TASK`.
+                    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+
+                    // Make it so.
+                    startActivity(intent);
+                    break;
+
+                case "night_mode":
+                    // Set the URL to be reloaded on restart to apply the new night mode setting.
+                    MainWebViewActivity.loadUrlOnRestart = true;
+
+                    // Store the current night mode status.
+                    boolean currentNightModeBoolean = sharedPreferences.getBoolean("night_mode", false);
+                    boolean currentJavaScriptBoolean = sharedPreferences.getBoolean("javascript_enabled", false);
+
+                    // Update the icon.
+                    if (currentNightModeBoolean) {
+                        if (MainWebViewActivity.darkTheme) {
+                            nightModePreference.setIcon(R.drawable.night_mode_enabled_dark);
+                        } else {
+                            nightModePreference.setIcon(R.drawable.night_mode_enabled_light);
+                        }
+                    } else {
+                        if (MainWebViewActivity.darkTheme) {
+                            nightModePreference.setIcon(R.drawable.night_mode_disabled_dark);
+                        } else {
+                            nightModePreference.setIcon(R.drawable.night_mode_disabled_light);
+                        }
+                    }
+
+                    // Update the status of `javaScriptPreference` and `domStoragePreference`.
+                    javaScriptPreference.setEnabled(!currentNightModeBoolean);
+                    domStoragePreference.setEnabled(currentNightModeBoolean || currentJavaScriptBoolean);
+
+                    // Update the `javaScriptPreference` icon.
+                    if (currentNightModeBoolean || currentJavaScriptBoolean) {
+                        javaScriptPreference.setIcon(R.drawable.javascript_enabled);
+                    } else {
+                        javaScriptPreference.setIcon(R.drawable.privacy_mode);
+                    }
+
+                    // Update the `domStoragePreference` icon.
+                    if (currentNightModeBoolean || currentJavaScriptBoolean) {  // The preference is enabled.
+                        if (sharedPreferences.getBoolean("dom_storage_enabled", false)) {  // DOM storage is enabled.
+                            domStoragePreference.setIcon(R.drawable.dom_storage_enabled);
+                        } else {  // DOM storage is disabled.
+                            if (MainWebViewActivity.darkTheme) {
+                                domStoragePreference.setIcon(R.drawable.dom_storage_disabled_dark);
+                            } else {
+                                domStoragePreference.setIcon(R.drawable.dom_storage_disabled_light);
+                            }
+                        }
+                    } else {  // The preference is disabled.  The icon should be ghosted.
+                        if (MainWebViewActivity.darkTheme) {
+                            domStoragePreference.setIcon(R.drawable.dom_storage_ghosted_dark);
+                        } else {
+                            domStoragePreference.setIcon(R.drawable.dom_storage_ghosted_light);
+                        }
+                    }
+                    break;
+
+                case "display_webpage_images":
+                    if (sharedPreferences.getBoolean("display_webpage_images", true)) {
                         // Update the icon.
-                        if (sharedPreferences.getBoolean("third_party_cookies_enabled", false)) {
-                            thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_warning);
+                        if (MainWebViewActivity.darkTheme) {
+                            displayWebpageImagesPreference.setIcon(R.drawable.images_enabled_dark);
                         } else {
-                            thirdPartyCookiesEnabled.setIcon(R.drawable.cookies_disabled);
+                            displayWebpageImagesPreference.setIcon(R.drawable.images_enabled_light);
                         }
-                        break;
 
-                    case "dom_storage_enabled":
+                        // `mainWebView` does not need to be reloaded because unloaded images will load automatically.
+                        MainWebViewActivity.reloadOnRestart = false;
+                    } else {
                         // Update the icon.
-                        if (sharedPreferences.getBoolean("dom_storage_enabled", false)) {
-                            domStorageEnabled.setIcon(R.drawable.dom_storage_enabled);
-                        } else {
-                            domStorageEnabled.setIcon(R.drawable.dom_storage_disabled);
-                        }
-                        break;
-
-                    case "user_agent":
-                        String userAgentString = sharedPreferences.getString("user_agent", "PrivacyBrowser/1.0");
-
-                        switch (userAgentString) {
-                            case "WebView default user agent":
-                                // Display the user agent as the summary text for `userAgentPreference`, and disable `customUserAgent`.
-                                userAgentPreference.setSummary(bareWebView.getSettings().getUserAgentString());
-                                customUserAgent.setEnabled(false);
-                                break;
-
-                            case "Custom user agent":
-                                // Display `Custom user agent` as the summary text for `userAgentPreference`, and enable `customUserAgent`.
-                                userAgentPreference.setSummary(R.string.custom_user_agent);
-                                customUserAgent.setEnabled(true);
-                                break;
-
-                            default:
-                                // Display the user agent as the summary text for `userAgentPreference`, and disable `customUserAgent`.
-                                userAgentPreference.setSummary(sharedPreferences.getString("user_agent", "PrivacyBrowser/1.0"));
-                                customUserAgent.setEnabled(false);
-                                break;
-                        }
-                        break;
-
-                    case "custom_user_agent":
-                        // Set the new custom user agent as the summary text for `custom_user_agent`.  The default is `PrivacyBrowser/1.0`.
-                        customUserAgent.setSummary(sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"));
-                        break;
-
-                    case "proxy_through_orbot":
-                        // Get current settings.
-                        boolean currentProxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
-                        String currentTorSearchString = sharedPreferences.getString("tor_search", "https://3g2upl4pq6kufc4m.onion/html/?q=");
-
-                        // Enable the Tor custom URL search option only if `currentProxyThroughOrbot` is true and the search is set to `Custom URL`.
-                        torSearchCustomURLPreference.setEnabled(currentProxyThroughOrbot && currentTorSearchString.equals("Custom URL"));
-                        break;
-
-                    case "tor_homepage":
-                        // Set the new tor homepage URL as the summary text for the `tor_homepage` preference.  The default is DuckDuckGo:  `https://3g2upl4pq6kufc4m.onion`.
-                        torHomepagePreference.setSummary(sharedPreferences.getString("tor_homepage", "https://3g2upl4pq6kufc4m.onion"));
-                        break;
-
-                    case "tor_search":
-                        // Get the present search string.
-                        String presentTorSearchString = sharedPreferences.getString("tor_search", "https://3g2upl4pq6kufc4m.onion/html/?q=");
-
-                        // Set the summary text for `tor_search`.
-                        if (presentTorSearchString.equals("Custom URL")) {
-                            // Use R.string.custom_url, which is translated, instead of the array value, which isn't.
-                            torSearchPreference.setSummary(R.string.custom_url);
-                        } else {
-                            // Set the array value as the summary text.
-                            torSearchPreference.setSummary(presentTorSearchString);
-                        }
-
-                        // Set the status of `torJavaScriptDisabledSearchCustomURLPreference`.
-                        torSearchCustomURLPreference.setEnabled(presentTorSearchString.equals("Custom URL"));
-                        break;
-
-                    case "tor_search_custom_url":
-                        // Set the summary text for `tor_search_custom_url`.
-                        torSearchCustomURLPreference.setSummary(sharedPreferences.getString("tor_search_custom_url", ""));
-                        break;
-
-                    case "search":
-                        String newSearchString = sharedPreferences.getString("search", "https://duckduckgo.com/html/?q=");
-                        if (newSearchString.equals("Custom URL")) {  // Set the summary text to `R.string.custom_url`, which is translated.
-                            searchPreference.setSummary(R.string.custom_url);
-                        } else {  // Set the new search URL as the summary text for the JavaScript-disabled search preference.
-                            searchPreference.setSummary(newSearchString);
-                        }
-
-                        // Enable or disable `searchCustomURLPreference`.
-                        searchCustomURLPreference.setEnabled(newSearchString.equals("Custom URL"));
-                        break;
-
-                    case "search_custom_url":
-                        // Set the new custom search URL as the summary text for `search_custom_url`.  The default is `""`.
-                        searchCustomURLPreference.setSummary(sharedPreferences.getString("search_custom_url", ""));
-                        break;
-
-                    case "enable_full_screen_browsing_mode":
-                        // Enable `transparent_navigation_bar` only if full screen browsing mode is enabled and `hide_system_bars` is disabled.
-                        translucentNavigationBarPreference.setEnabled(sharedPreferences.getBoolean("enable_full_screen_browsing_mode", false) && !sharedPreferences.getBoolean("hide_system_bars", false));
-                        break;
-
-                    case "hide_system_bars":
-                        // Enable `translucentNavigationBarPreference` if `hide_system_bars` is disabled.
-                        translucentNavigationBarPreference.setEnabled(!sharedPreferences.getBoolean("hide_system_bars", false));
-                        break;
-
-                    case "homepage":
-                        // Set the new homepage URL as the summary text for the Homepage preference.  The default is `https://www.duckduckgo.com`.
-                        homepagePreference.setSummary(sharedPreferences.getString("homepage", "https://www.duckduckgo.com"));
-                        break;
-
-                    case "default_font_size":
-                        // Update the summary text of `default_font_size`.
-                        defaultFontSizePreference.setSummary(sharedPreferences.getString("default_font_size", "100") + "%%");
-                        break;
-
-                    default:
-                        // If no match, do nothing.
-                        break;
-                }
+                        if (MainWebViewActivity.darkTheme) {
+                            displayWebpageImagesPreference.setIcon(R.drawable.images_disabled_dark);
+                        } else {
+                            displayWebpageImagesPreference.setIcon(R.drawable.images_disabled_light);
+                        }
+
+                        // Set `mainWebView` to reload on restart to remove the current images.
+                        MainWebViewActivity.reloadOnRestart = true;
+                    }
+                    break;
             }
         };