Colorful tags

[UtkarshVerma]

I just finished porting the colorful tags patch to my build of dwm-flexipatch. Just letting you know so that you can save time if you plan to add it in the future.

This is the commit UtkarshVerma/dwm@7cb07e5

This is how it looks on my build:

I wish I could create a PR but my build has diverged from your build I don't have time right now to apply the patch onto a fresh clone.