Korners for Rainmeter:
///BOTTOM KORNERS AND BETTER SCRIPT BY
Adds black corners to your screen to give the illusion of having round corners on your LCD, like the mac computers do.
1. Extract .zip to the Rainmeter skins folder
2. Load the Korners
3. They should go to your corners by default
4. Under skin settings, set Position to "StayTopMost"
5. Tick "Click through" and "Keep On Screen"
6. And untick "Draggable", Apply and Exit.