Remove cache size setting. Add advanced settings section. Other minor changes.

app/src/main/res/values/strings.xml

@@ -38,6 +38,8 @@
     <!-- Buttons -->
     <string name="button_ok">OK</string>
     <string name="button_cancel">Cancel</string>
+    <string name="button_yes">Yes</string>
+    <string name="button_no">No</string>
 
     <!-- Operations -->
     <string name="deleting">Deleting…</string>
@@ -49,7 +51,7 @@
     <string name="pref_category_reader">Reader</string>
     <string name="pref_category_accounts">Accounts</string>
     <string name="pref_category_downloads">Downloads</string>
-    <string name="pref_category_cache">Cache</string>
+    <string name="pref_category_advanced">Advanced</string>
     <string name="pref_category_about">About</string>
 
       <!-- General section -->
@@ -58,14 +60,14 @@
     <string name="landscape">Landscape</string>
     <string name="default_columns">Default</string>
 
-
       <!-- Reader section -->
     <string name="pref_hide_status_bar">Hide status bar</string>
     <string name="pref_lock_orientation">Lock orientation</string>
     <string name="pref_enable_transitions">Enable transitions</string>
     <string name="pref_show_page_number">Show page number</string>
     <string name="pref_custom_brightness">Use custom brightness</string>
-    <string name="pref_reader_theme">Reader theme</string>
+    <string name="pref_keep_screen_on">Keep screen on</string>
+    <string name="pref_reader_theme">Background color</string>
     <string name="white_theme">White</string>
     <string name="black_theme">Black</string>
     <string name="pref_viewer_type">Default viewer</string>
@@ -79,12 +81,14 @@
     <string name="pref_download_directory">Downloads directory</string>
     <string name="pref_download_slots">Simultaneous downloads</string>
 
-      <!-- Cache section -->
-    <string name="pref_chapter_cache_size">Chapters cache size</string>
+      <!-- Advanced section -->
     <string name="pref_clear_chapter_cache">Clear chapter cache</string>
     <string name="used_cache">Used: %1$s</string>
     <string name="cache_deleted">Cache cleared. %1$d files have been deleted</string>
     <string name="cache_delete_error">An error occurred clearing cache</string>
+    <string name="pref_clear_database">Clear database</string>
+    <string name="pref_clear_database_summary">Delete mangas and chapters that are not in your library</string>
+    <string name="clear_database_confirmation">Are you sure? Read chapters and progress of non library mangas will be lost</string>
 
       <!-- About section -->
     <string name="version">Version</string>