Should I expect the colors to be correct on the UI Cloud images? I have a basic screen with 4 buttons on a panel and the color of the buttons is correct on the Galaxy Note, Samsung I900, and Kindle Fire, but all buttons appear dimmed on the Galaxy Tab 2, HTC One X, and Nexus 7.
The colors are "correct". New devices (including the UI Cloud devices) use the holo theme by default. This is how your application will look on most Android 4+ devices. You can set android:targetSdkVersion to any value less then 10 to force the old style on all devices.