Some Pull Requests to implement if you desire to
https://github.com/helix-editor/helix/pull/2857 Rainbow tree-sitter
https://github.com/helix-editor/helix/pull/4493 indentation guide
https://github.com/helix-editor/helix/pull/3366 initial editing mode
Thank you very much for mentioning these PRs! I finally had a closer look at them:
https://github.com/helix-editor/helix/pull/2857: There seems to be some movement on this one; I'd like to give it a bit more time to see where it goes. https://github.com/helix-editor/helix/pull/4493: This one has been merged in evil-helix! See #76 for more info. https://github.com/helix-editor/helix/pull/3366: This one seems to have been rejected a while ago by one of the upstream maintainers (which is bad for us), but the changes are pretty minimal (which is good for us). I have to give it some more thought.