val appThemeEntryNumber: Int = when (sharedPreferences.getString(getString(R.string.app_theme_key), getString(R.string.app_theme_default_value))) {
appThemeEntryValuesStringArray[1] -> 1 // The light theme is selected.
appThemeEntryValuesStringArray[2] -> 2 // The dark theme is selected.
val appThemeEntryNumber: Int = when (sharedPreferences.getString(getString(R.string.app_theme_key), getString(R.string.app_theme_default_value))) {
appThemeEntryValuesStringArray[1] -> 1 // The light theme is selected.
appThemeEntryValuesStringArray[2] -> 2 // The dark theme is selected.