I just downloaded the Parabola theme.
Thank you and congratulations on such a splendid and versatile piece of work!
The demo on the web site has a side pop-out list of different preset color schemes (including font settings). Although the default one is very nice indeed, I would actually like to use one of the others.
However, the installed theme does not appear to offer these presets. The version I am using is 1.2.0. I would be most grateful if anyone can share how to access the preset color/appearance schemes.