setting underline color

[Jackson Ludwig]

Thanks for the plugin.

I am looking to highlight LSP colors with an underline that is a different color from the text itself (e.g. the text can be any color while the underline should always be red).

Would you be able to point me in the direction to do this? Usually I think guisp controls underline color but I can't see the effect while using lush and doing something like

DiagnosticUnderlineError { bg = palette.background, gui = "underline", guisp = "palette.red" }

The underline shows but remains the color of the foreground.

[Oliver Marriott]

The key should be sp, inline with bg, fg where we strip gui from the key name. Support may be dependent on your terminal, not sure.

Direct Definition                                  *lush-spec-direct-definition*

Used to define a stand alone highlight group.

Syntax:
>
  GroupName { fg = value, bg = value, gui = value, sp = value, blend = value }
<

Supports the following keys:

  fg:    sets the `guifg` property of a Vim highlight group.

  bg:    sets the `guibg` property of a Vim highlight group.

  gui:   sets the `gui` property of a Vim highlight group.

  sp:    sets the `guisp` property of a Vim highlight group.

  blend: sets the `blend` property of a Vim highlight group.

[Jackson Ludwig]

Thanks for the info. My mistake on the syntax. I'll have to confirm but I think there was an issue with windows terminal displaying the different colored underline as well.

[Oliver Marriott]

Yeah, it doesn't work in alacritty but does in kitty for example. I imagine it's more likely to be unsupported than supported in most terminals.

From memory Windows Terminal had issues with bold (or was it italic?) font faces etc until recently so I think their font decoration handling might be pretty spotty.