- Designed for 10.9+
- SIMBL plugin to grayscale background windows on OS X
- Author: w0lfschild
- Download mySIMBL
- Download GrayFocus
- Unzip downloads
- Restart Chrome
Pretty much the BSD license, just don't repackage it and call it your own please!
Also if you do make some changes, feel free to make a pull request and help make things more awesome!