Retro Boy Shader is a customizable full-screen effect that emulates the classic Game Boy visual style.The shader comes with the following settings:Color Palette:Apply Palette: Enable or disable the custom color palette.Palette Color 1 to 4: The colors of the palette.Downscaling:Apply Downscaling: Enable or disable the downscaling effect.Quality: A higher value results in a smoother downscaling effect. Values other than 0 will use multiple samples per pixel.Screen Resolution: The resolution of the downscaling effect.The shader is best used with an aspect ratio of 10:9, which is the aspect ratio ofthe Game Boy.