Add korrigan theme
Hi!
I made a new theme, which fits most of my needs but there might be some issues with some features I don't use. I really just hacked the current files instead of recreating something from scratch. If the theme thus does not fit the software quality, I might adjust things or feel free to refuse this MR, no worries.
However, if that could make other people happy, here it is. I am not sure this is the right place to propose a theme though? Is there a separate repository for that?
Edited by Luc Didry