dyoo
Error coloring in bright rooms makes text unreadable
Structured, colored errors are awesome. However -- some screens have very low contrast in ambient light (the biggest offenders are projector screens and AMOLED displays, like the Nexus One phone). Error colors that are extremely dark (esp blue) wind up hiding the text they contain.
To reproduce: Use a projector in a room with some lights on in the room, and log into WeScheme. Evaluate (circle 1 2 3 3 4 5 6 7 8 9 0)
Can you see the text from all angles of the room?
Justification: Some phone/tablet/netbook screens suck! Some people want to use WeScheme on a projector!
Followup: even on good screens, some of the coloring is poor. (circle 5 "solid" "red" 5) winds up putting a dark green background behind the "red", whose text is also dark green. Even on my hi-res MBP, this is actually pretty hard to read, even in good light.