github沉浸阅读 is a free Chrome add-on and tool that enhances the reading experience on GitHub. With this add-on, users can customize the code area background color to protect their eyes and improve readability. It also removes unnecessary pages and headers and footers, allowing users to focus solely on the code they are reading. This add-on is especially useful for developers and programmers who spend a significant amount of time on GitHub, as it helps create a distraction-free environment for better concentration. Overall, github沉浸阅读 is a simple yet effective tool for those who want to enhance their reading experience on GitHub.