I'm trying to import my quizzes from 2.0 to 2.2 and I'm getting a light blue box around the questions...
Yes, that is the new look for the quiz. If you don't like it, you will have to override it in your theme.
hmmm...where is that file located? I tried to find it in the binarius theme with no luck...is there a positive response to the sky blue?
The colours are in /theme/base/style/question.css.
(This is probably not 'right', since base theme is meant to be very plain, but that is the way it is for now.)
As it happens, the colours come from OpenMark (http://java.net/projects/openmark/). That is rather arbitrary, but seemed to be as good a default as anything else.