statuscol.nvim VS extmark-toy.nvim

Especially for the appearance such as the fold icons, you can tweak it via statuscol.nvim or change neovim source code (no worries just a few lines) and build it by yourself, and please refer to this issue for details.

I just installed and configured statuscol.nvm. Everything is working great, however it's using a different highlight group for line numbers on lines where the text has been edited. I've tried many ways to find the highlight group that needs to be fixed, but I just can't find it. Is there a way to get the highlight group used in the statuscolumn?

I know that https://github.com/luukvbaal/statuscol.nvim has click handlers in case that code could help

2) Neovim offers that by default (although it isn't very sexy). We call that folding. You can use za, zo, zc to toggle (alternate), open and close folds respectively. There are built-in mappings to open and close all folds and so on (check :h zo). If you want to use your mouse though, you can also configure that using this plugin. I mentioned it isn't very sexy because, by default, folds aren't highlighted (something you can achieve with this plugin).

If you want to add a dependency to your config and use Neovim 0.9 or later, you can use statuscol.nvim.

Yes, my bad. I am using gitsigns, though I tried to set up statuscol.nvim without much success.

I see on your screenshot that you are manually handling file types with the statuscol plugin in order to hide the status column. That is fixed now and the plugin itself should do it correctly.

what aboug making a plugin or extend https://github.com/luukvbaal/statuscol.nvim ?

This really rarely happened. I only encountered it once when testing extmark-toy.nvim, which is an abandoned framework to create games/animations inside Neovim.

I'll use this reply to showoff the practically useless, but pretty extmark-toy.nvim for anyone who's interested and hadn't seen it already.