Add unique highlighting group to current viewing buffer/file

[ugoa]

Can this functionality be implemented utilising API?

I'd say no? I have searched the codebase and options but got no clue of how to support this with existing APIs.

Is your feature request related to a problem? Please describe.

The current option in nvimtree to highlight opened files is controlled by option renderer.highlight_opened_files, which would highlight all currently opened files with one highlight group NvimTreeOpenedHL. This causes all the files share the same color scheme, and it becomes quite difficult to identify the current viewing buffer in the file tree.

I wonder if an option can be added to make the current viewing buffer to use a different hightlight group? something like highlight_current_buffer. I imagine it be a combination of option update_focused_file.enabled and renderer.highlight_opened_files.

Something like the below effect:

Describe the solution you'd like
Add new option toggle this feature, such as highlight_current_buffer

Describe alternatives you've considered
Maybe add new value single to existing option renderer.highlight_opened_files?

Additional context
Please see the screenshot

[alex-courtis]

It's possible to add those highlight groups, a pull request would be most gratefully appreciated.

However, I don't think it is really necessary: the opened file is indicated by the cursorline, which overrides the opened files highlight.

It looks like you've got &cursorline and &number disabled. Turn one or both on and then change their highlight:

setup:

  ---
  view = {
    number = true,
    cursorline = true,
    ---

highlight:

:hi NvimTreeCursorLine guifg=blue
:hi NvimTreeCursorLineNr guifg=red

[alex-courtis]

If you're happy with the above I'll move this to Q&A Discussions

[ugoa]

Thank you so much, this is beautiful and exactly what I wanted. Really appreciate it!