If you use CodeMirror, you definitely need to check this out
Introducing rainbowBrackets🌈
CodeMirror is an awesomely powerful in-browser code editor. While its API is complex, it allows developers a ton of flexibility to create an in-browser IDE in any language with modern features like syntax highlighting, linting, folding, auto-indent, bracket matching, and more. You can use a variety of themes out of the box, or even…