Github Diff Coloring is a Chrome add-on developed by ronaldvdkooy. It is a free program that falls under the category of Browsers, specifically in the Add-ons & Tools subcategory.

The main purpose of this add-on is to adjust the diff coloring on GitHub so that it is more readable for people who are red/green color blinded. It addresses the issue of color blindness by modifying the color scheme used in the diffs, making it easier for users with red/green color blindness to distinguish between the added and deleted lines.

With Github Diff Coloring, users can now navigate and understand code changes more effectively, regardless of their color perception. This add-on provides a simple yet valuable solution for individuals with red/green color blindness who rely on GitHub for code collaboration and version control.

Overall, Github Diff Coloring is a useful Chrome add-on that enhances the accessibility of GitHub for red/green color blind individuals, allowing them to participate in code review and collaboration with ease.