QQ Desktop Pro (actually the app's in Chinese) is a decent if not spectacular launcher. At 1760KB in size, it's not exactly lightweight, but its performance is quite respectable.
BEWARE: The app is in Chinese, so it's not for everybody.
Once nice thing it does is it will look for backup files left by other desktops and import them to restore your desktop layout. I have Launcher Pro installed and it was able to restore my desktop config.
The dock's background can't be changed, but it does have 4 static shortcuts. Just drag and drop another icon to the spot and voila, it's configured.
It comes with a few built-in widgets such as memory / purge widget and a "toggle" widget similar to "Power Control". However, it used a 'blue on white' theme instead. In fact, the entire app uses a white theme.
You can choose different transitions, import config from other launchers, and choose two styles of app drawer (Samsung style, or Windows Phone 7 style) . It also has a few links directly to QQ's download app store, and other things.
Worth trying for sure.