Chrome DevTools: See your changes via Local Modifications
Last updated: 3rd July 2020
Local modifications lets you see what changes have been made (via DevTools) to certain source files.
Once you've made your change and saved it, right click on the file within the Sources Panel and select Local modifications. Each modification will be listed as a new change and each can be reverted individually.
Local modifications is helpful for keeping track and which changes you've made, what time you made those changes, and to which files you made those changes to.
You might also be interested in the newer DevTools Changes Panel.