Well in my previous posting I did not mention the OS. The
problem appears in Windows Vista and nothing is wrong with Flex.
This light-pale blue is the same that appears in context menus and
in the start menu. I searched a lot in google and I found that a
way to change this color is to edit msstyle or use a third party
program like windowblinds. Not to mention that a lot of people
complain about this color.