Change file icon based on regex or partial name?

[Eutropios]

I'd like to be able to change the icons of files based on a pattern that the files match. For example, I'd like to change the icon of files with a leading underscore and no extension (_clangd, _ruff, _cmake, _pip). You may have noticed that these files could more accurately be described as zsh completion scripts. Unfortunately since that filetype does not exist as an option in lsd (and I wouldn't expect it to), I was looking to target them through a name instead.