Fix white on 5-6-5 color
Fix white on 5-6-5 color

sergiobenrocha2/mgba,libretro/mgba,askotx/mgba,cassos/mgba,Anty-Lemon/mgba,Iniquitatis/mgba,matthewbauer/mgba,libretro/mgba,askotx/mgba,MerryMage/mgba,jeremyherbert/mgba,bentley/mgba,AdmiralCurtiss/mgba,iracigt/mgba,zerofalcon/mgba,zerofalcon/mgba,libretro/mgba,jeremyherbert/mgba,zerofalcon/mgba,Anty-Lemon/mgba,askotx/mgba,AdmiralCurtiss/mgba,cassos/mgba,jeremyherbert/mgba,Touched/mgba,fr500/mgba,sergiobenrocha2/mgba,sergiobenrocha2/mgba,fr500/mgba,sergiobenrocha2/mgba,iracigt/mgba,libretro/mgba,Iniquitatis/mgba,Iniquitatis/mgba,MerryMage/mgba,mgba-emu/mgba,Iniquitatis/mgba,iracigt/mgba,Anty-Lemon/mgba,libretro/mgba,sergiobenrocha2/mgba,matthewbauer/mgba,jeremyherbert/mgba,mgba-emu/mgba,Touched/mgba,nattthebear/mgba,cassos/mgba,fr500/mgba,bentley/mgba,MerryMage/mgba,Anty-Lemon/mgba,fr500/mgba,AdmiralCurtiss/mgba,mgba-emu/mgba,iracigt/mgba,askotx/mgba,mgba-emu/mgba,Touched/mgba,nattthebear/mgba