[sovrce]

You can't really do anything about the background and color issues. People are having a hard enough time customizing their theme, let alone a certain color of a specific tab. Unfortunately, the only real fix is to try a different theme.

As for the Opera issue.. Have you tried updating to the latest build? Other than that, try a tweaking program, like 'Advanced Config' and editing "PollInterval" under the 'G-Sensor' tab. This will change how often the device checks its orientation. Lower this value, cut it in half even, and see if that doesn't help at all.