Updated and merged. Loving it (and so are my guests).
I tried messing with dofile() to see if you can load expert settings from separate file, but I had no luck. The file being processed has to have all methods loaded. There doesn't seem to be an easy way to insert a block of code in Squirrel. Honestly though AttractMode needs per-display layout options, there's no reason anyone should be editing your theme.
While I don't exactly disagree, I think that for newer users, just setting things one way for all will work. When they get to the point of customizing they can explore.
If there are too many knobs, it can be overwhelming.
The way to do this is enable expert mode, then more options appear.
@Kent79 - Any thoughts about putting this on github so its easier to manage, update, and some of us can contribute?
I've had to add some entries into the genre list to match categories I had been using ('role-playing' vs 'role playing')