So I Hade This Idea About Using Brightness In My Game Because I Feel As It Would Be A Cool Feature To Have... But Then I Relize That The Color Pallet Changes With The Over Lay Black That I Use... So The Color Become A Bit Darker.

This was answered on the discord but for others reference: As long as the default option is set to full brightness it would be fine. Games in the past have had a palette swapper option in settings which is also fine so long as the default colors are the required ones.