I "suffer" (not really) from a difficult-to-diagnose form of colourblindness. It generally corresponds with red-green colourblindness, but there are some quirks. There's a definite cognitive element to whatever's going on, and for kicks I can see some "secret colours" that other people can't.
Anyway - it can be very hard to read text in different colours, or to differentiate between colours.
I adore Ethan Schoonover's popular Solarized theme, but I find it very hard to pick apart some of the colours in the Light theme. The dark theme is easier, but I don't want to be looking at a dark theme all day!
I could spend forever tweaking the colours, but I'm not very good at thinking about stuff like this, and surely someone else has put some thought into this. Does anyone know of themes for terminal applications and so on (mainly, something I can just shove into MacVim) designed with degrees of colourblindness in mind?
I found TextMate's Blackboard theme very clear, but I've gone back to Vim and, again, I want something nice and light.