Wildcard label

I like to label linux hidden files (files and folders starting with a dot) so they appear in lighter gray.

For this just create a new label (ex named 'linuxhidden') and set colors you like.
Create a new wildcard label using regular expression and select linuxhidden

Use this expression if you like only to label files/folders with the dot:

\\\.((?!\\).)*$

...or use this if you like to label files/folders and all subfiles/subfolders of folders with a dot

\\\..*

Feel free to post other useful wildcard. :thumbsup: