Source (link to git-repo or to original if based on someone elses unmodified work): https://www.opencode.net/hackan301/puking-unicorn-css-for-kate/tree/master
Inspired by cmelo-puking-unicorn-syntax for Atom.
The scheme only covers SCSS, feel free to copy it into other languages :-)
Install: Kate Settings -> Fonts and colors -> Colorfontstyles (the last tab) -> Check CSS -> Import
This theme assumes you are using a dark overall theme.