Missing transparency on some elements when applying add_transparency

[wroyca]

Contributing guidelines

• I have read CONTRIBUTING.md
• I have read CODE_OF_CONDUCT.md
• I have updated 'mini.nvim' to latest version

Module(s)

Colors

Description

Hello o/

Using add_transparency({float = true}) with MiniColors will miss some elements, (e.g. MiniFilesTitles, MiniClueNextKeys, ...)

These are not "float" if we are pedantic with the definition, but they're part (as in, elements) of Mini floats so I believe they should follow suit

Neovim version

NVIM v0.10.0-dev+2931-g7fa24948a

Steps to reproduce

1. nvim -nu minimal.lua
2. lua MiniColors.interactive()
3. add_transparency({float = true})
4. lua MiniFiles.open() or lua MiniPick.builtin.grep_live() or others.

Expected behavior

Title, keys, and others that are on a transparent float should also have a transparent background to not look out of place.

Actual behavior

[echasnovski]

Thanks for the suggestion!

MiniColors.add_transparency() is mostly designed to work with built-in groups. Making exceptions for 'mini.nvim' is possible, but might be not very sustainable in the long run. I'll think about it.