I too wish for this. So much. It's the most annoying thing about Meego on the N9 for me. That light blue with white text is a massive fail. Who could be that dumb to choose such a combo? No doubt you will be told to use that tweak app that I just can't figure out (the instructions are as poor as its implementation, in my opinion).

http://wiki.maemo.org/N9QTweak