This might not seem important but it's been bugging me for a long time. I pretty much only use pure black, pure white, pure red, and transparent for magic sheet fill colors and fields. I don't like having to use the slider to make colors appear because it takes longer and is inaccurate.
If you just take the gray tile above the "X" and make it always pure black, I can just leave the slider in the exact middle and have black, white, red, and transparent always easily available. Black is probably the most popular color for everyone and I'll never have to deal with that slider again.
