Depending on the effect you choose, it could make the screen easier to see in different lighting situations, save battery, or just balance the colors of the display.
I was able to get Color Calibrator to work in MIUI on my N1. That was before MIUI upgraded to Gingerbread though. I don't know if it still works. If the link doesn't show up, search for android color calibrator.
I was able to get Color Calibrator to work in MIUI on my N1. That was before MIUI upgraded to Gingerbread though. I don't know if it still works. If the link doesn't show up, search for android color calibrator.
I also used to use this on MIUI Froyo, but I haven't had any luck since Gingerbread. It would cause boot loops after flashing the first part. I haven't tested since 1.4.1, but I have a feeling it just isn't going to work on GB at all without an update.