I’ve recently started a new project using Marko.js and found that the editor doesn’t support it. If support could be added that would be nice. 
Hey @Dog2puppy, thanks for the suggestion! Can you give us a better idea of how Glitch fails to support Marko.js and what you’d like to see instead?
And don’t forget to vote for your own suggestion!
The editor lacks syntax highlighting and auto complete for stuff like brackets.
Unfortunately I can’t vote because I reached the limit.