Gothic theme created by mamule a member of the TGames crew and sometimes found on GBATemp. Optionally there's also a source menu button set available to download. Place it including the source_menu.ini in a gothic folder in your source_menu folder and every time you use this theme you will see the source menu buttons as well. You may need to edit the source_menu.ini to your liking.
Gothic theme r441 - DOWNLOAD
Gothic source menu - DOWNLOAD
compatible with wiiflow 4.2.1 r441