Option to add a dot (or another shape) at the end of folders names

[albertoloscerritos]

Hi, what a great snippet. Thanks for the awesome job.
I think it would be very cool to have the option to add a dot at the end of folder names (with the corresponding color). Just like how the AnuPpuccin theme (https://github.com/AnubisNekhet/AnuPpuccin) does with its simple rainbow folders implementation:

Thanks :)