Fixes the game to display properly on TVs by removing use of forbidden color 0D (the blacker-than-black color that causes sync problems)
Castelian Palette Fix by Dwedit (2024-06-01)
This removes all use of the forbidden color 0D (Blacker than Black) from the game, replacing it with normal black 0F.
Use of the forbidden 0D color causes sync problems on some TVs.
Database match: Castelian (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 3DEF6CCB01B4E571939D57BD65658DB27DA71D4F
File CRC32: 39EF1AD6
ROM SHA-1: 847D56E43754E402666A91188520737094E9ECFA
ROM CRC32: AE6C9E2