Soften the design - hurts eyes
Some people have complained about the colours being too harsh and the white/black/green scheme being difficult to read. One option is to soften the design somewhat - maybe actually get a real designer involved. Agree?
Asit Bánérjéé commented
At home I use a terminal with milder-green text and dark-greyish (not pitch-black) background. It is soothing to the eyes, not as much as green grass :D but yep it's okeyish. Too bright a background (like white!) makes it look like windoze notepad ;D so i suggest no-no for that.
I suggest why not modify the green-black in terminal to mild-green/dark-greyish as default and allow customizable colors (as @David already said) based on cookies?
I agree. Some skin with bright background would please those who don't like black backgrounds (like me of course !).
One option would be to have different skins for the termainal and page controlled by a cookie.