pack colors, the 3.1 rule question

I want to bring up another idea, because I think many people don't seem completely satisfied right now: how about a high contrast mode for those who need it? Some of us may be on older monitors or have poorer vision, but not all of us necessarily have those issues and need those accommodations, and while I do think some colors could use changes on certain modes, some (for example, Easthollow's pink on light mode) are completely readable (at least to me) despite being marked as unreadable by the little machine. 

An idea mentioned by Flyleaf to me was that high contrast mode could consist of a single, starkly different color for each pack. Just like selecting different colors for dark mode, PMs could select a single color for the high-contrast mode to meet certain standards there without having to change regular mode colors