Changelog:
- Fix VRAM garbage displaying behind menu when playing with scaling mode on
- Fix GBC BIOS overwriting palettes in SGB mode
- Fix GBC palette writes (fixes black colors when playing with color correction)
- Fix SGB mode not using custom palettes
There's still some weirdness with palettes in games that have SGB enhancements. Feel free to open issues for individual games and I'll try to hunt them down.
Regarding settings: make sure you have a _nds folder created in the root of your SD card since GameYob is currently hardcoded to look for and save the settings file there. Saving can fail if the folder isn't present.