github syntax is a free Chrome extension developed by Dan Vanderkam. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension enhances the GitHub experience by adding syntax highlighting to the split diff pull request view.

With github syntax, you can enjoy syntax coloring whenever you visit the GitHub pull request "Files" page with split diffs enabled. This is made possible through the integration of highlight.js, a popular syntax highlighting library. The extension is easy to install and once installed, the syntax highlighting feature is immediately visible.

It is important to note that github syntax currently only works for public repositories. Despite this limitation, the extension is a valuable tool for developers who want to enhance their GitHub experience and easily identify code changes in split diff pull requests.