Here is a preview
of the keyword insignias. Currently, only keywords that belongs to the card are replaced with insignias. It consumes less space, since all keywords can fit into one line. When you hover over a keyword insignia, keyword name (and value if present) and description will pop up.
I also made a prototype that replaced keywords present in the card effect, but that didn't look good and actually used more space. So, I decided to apply it for card keywords only.
I have a insignia for every keyword, but my skills with GIMP are limited, so any superior pictures are still welcome.