Remove 32-bit color setting from reader sheet

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderSettingsSheet.kt

@@ -1,6 +1,5 @@
 package eu.kanade.tachiyomi.ui.reader
 
-import android.os.Build
 import android.os.Bundle
 import android.widget.CompoundButton
 import android.widget.Spinner
@@ -30,7 +29,6 @@ import kotlinx.android.synthetic.main.reader_settings_sheet.rotation_mode
 import kotlinx.android.synthetic.main.reader_settings_sheet.scale_type
 import kotlinx.android.synthetic.main.reader_settings_sheet.show_page_number
 import kotlinx.android.synthetic.main.reader_settings_sheet.tapping_inverted
-import kotlinx.android.synthetic.main.reader_settings_sheet.true_color
 import kotlinx.android.synthetic.main.reader_settings_sheet.viewer
 import kotlinx.android.synthetic.main.reader_settings_sheet.webtoon_prefs_group
 import kotlinx.android.synthetic.main.reader_settings_sheet.webtoon_side_padding
@@ -93,11 +91,6 @@ class ReaderSettingsSheet(private val activity: ReaderActivity) : BottomSheetDia
         always_show_chapter_transition.bindToPreference(preferences.alwaysShowChapterTransition())
         crop_borders.bindToPreference(preferences.cropBorders())
         page_transitions.bindToPreference(preferences.pageTransitions())
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            true_color.visible()
-            true_color.bindToPreference(preferences.trueColor())
-        }
     }
 
     /**

app/src/main/res/layout/reader_settings_sheet.xml

@@ -60,7 +60,7 @@
         app:layout_constraintStart_toEndOf="@id/verticalcenter"
         app:layout_constraintTop_toBottomOf="@id/series_prefs" />
 
-    <!-- General preferences -->
+    <!-- General display preferences -->
 
     <TextView
         android:id="@+id/general_prefs"
@@ -73,6 +73,35 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/viewer" />
 
+    <com.google.android.material.switchmaterial.SwitchMaterial
+        android:id="@+id/crop_borders"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/pref_crop_borders"
+        android:textColor="?android:attr/textColorSecondary"
+        app:layout_constraintTop_toBottomOf="@id/general_prefs" />
+
+    <com.google.android.material.switchmaterial.SwitchMaterial
+        android:id="@+id/page_transitions"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/pref_page_transitions"
+        android:textColor="?android:attr/textColorSecondary"
+        app:layout_constraintTop_toBottomOf="@id/crop_borders" />
+
+    <!-- General reading mode preferences -->
+
+    <TextView
+        android:id="@+id/display_prefs"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="24dp"
+        android:text="@string/pref_category_display"
+        android:textColor="?attr/colorAccent"
+        android:textStyle="bold"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/page_transitions" />
+
     <TextView
         android:id="@+id/rotation_mode_text"
         android:layout_width="0dp"
@@ -91,7 +120,7 @@
         android:entries="@array/rotation_type"
         app:layout_constraintEnd_toEndOf="@id/spinner_end"
         app:layout_constraintStart_toEndOf="@id/verticalcenter"
-        app:layout_constraintTop_toBottomOf="@id/general_prefs" />
+        app:layout_constraintTop_toBottomOf="@id/display_prefs" />
 
     <TextView
         android:id="@+id/background_color_text"
@@ -153,45 +182,19 @@
         android:textColor="?android:attr/textColorSecondary"
         app:layout_constraintTop_toBottomOf="@id/keepscreen" />
 
-    <com.google.android.material.switchmaterial.SwitchMaterial
-        android:id="@+id/true_color"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/pref_true_color"
-        android:textColor="?android:attr/textColorSecondary"
-        android:visibility="gone"
-        app:layout_constraintTop_toBottomOf="@id/long_tap"
-        tools:visibility="visible" />
-
     <com.google.android.material.switchmaterial.SwitchMaterial
         android:id="@+id/always_show_chapter_transition"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="@string/pref_always_show_chapter_transition"
         android:textColor="?android:attr/textColorSecondary"
-        app:layout_constraintTop_toBottomOf="@id/true_color" />
-
-    <com.google.android.material.switchmaterial.SwitchMaterial
-        android:id="@+id/crop_borders"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/pref_crop_borders"
-        android:textColor="?android:attr/textColorSecondary"
-        app:layout_constraintTop_toBottomOf="@id/always_show_chapter_transition" />
-
-    <com.google.android.material.switchmaterial.SwitchMaterial
-        android:id="@+id/page_transitions"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="@string/pref_page_transitions"
-        android:textColor="?android:attr/textColorSecondary"
-        app:layout_constraintTop_toBottomOf="@id/crop_borders" />
+        app:layout_constraintTop_toBottomOf="@id/long_tap" />
 
     <android.widget.Space
         android:id="@+id/end_general_preferences"
         android:layout_width="0dp"
         android:layout_height="0dp"
-        app:layout_constraintBottom_toBottomOf="@id/page_transitions" />
+        app:layout_constraintBottom_toBottomOf="@id/always_show_chapter_transition" />
 
     <!-- Pager preferences -->