星图 is a Chrome add-on developed by materliu that provides a convenient and quick way to switch between three different environments of the DMP (Data Management Platform) product of JD.com. The three environments available are testing, pre-release, and production. With this add-on, users can easily toggle between these environments without any hassle.

This add-on is particularly useful for developers and testers who frequently need to switch between different environments to test and validate their code. Instead of manually changing the environment settings every time, users can simply use the 星图 add-on to switch between the testing, pre-release, and production environments with just a few clicks.

With its simple and intuitive interface, 星图 makes environment switching a breeze. It eliminates the need for users to remember and manually enter different URLs or settings for each environment, saving them valuable time and effort.

Overall, 星图 is a handy Chrome add-on that provides a convenient solution for developers and testers working with the DMP product of JD.com. It streamlines the process of environment switching, making it easier and more efficient.