Feature Request: Color Impairment Accessibility

[pushfoo]

TL;DR: Since there are ~8 colors, we can map to patterns

@DigiDuncan was showing me the game as it is. Color-impairment modes immediately came to mind. In addition to color filter modes for partial color blindness, one idea I suggested was using patterns to enhance differences between the colors.

Digi made a mock-up in both Color and B&W modes:	With Color	B&W*

* There are multiple issues with this B&W conversion

1. Most graphics programs do not have a mono conversion option which accurately replicates human perception's color mixing
   • *Note: Digi mentions that Adobe may have added one in PS at some point
   • It may be worth implementing this as a shader
2. We'll need to research how to maximize visual contrast in the grayscale band
   • Contrast perception in grayscale may have been partially logarithimic instead of linear
   • We may need 10+ total shades to account for black, game values, and white for object / UI interactions?

[DragonMoffon]

Yup, this was in the plan, but good idea making an issue for it