I thought this would be a quick 2-hour project, but I ended up spending hours researching
color space. After trying out different scoring systems, I decided to use the established CIE94 formula.
CIE94 was chosen for this game because it takes into account the human perception of color,
which is non-uniform across the light spectrum. The formula is also not as complex as
CIEDE2000, making it easier to implement. If you want to learn more about it, you can find
more info
here.