This is something that I've noticed for, well, quite a while now.

Whenever I try to change the colors in the inactive module, it'll save it as the colors I input, but if I revisit the page later (literally, two seconds later), the inactive module displays with default settings (I would like to say that the rest of the profile displays, more or less, as I had intended it to). When I go back to edit the colors (to see if the control panel had saved my colors incorrectly), the inactive module is set to the colors I input...

I don't know why this is happening, but... it's just a little irritating to know that, no matter how much time I spend tweaking the colors or whatever, it will, invariably, revert to its original, default settings.