[nobodysfool]

>Do you think it's something a non-designer could do?

Picking an ugly font that has to be huge to be legible and providing too much empty space and padding? Yea, I can do that.

That particular case, the colors make the text not so hard on the eyes, but the font itself is just awful at that size, it may be interesting in print, but on a webpage it's just too jumbled and it's certainly not very legible. You wouldn't want to read a book written in that font.

Click on the 'features' or 'bootstrap' on that page, and tell me you don't spot something wrong.

Also, where does the magenta color come in? I see it nowhere in that theme...

I think it's great that you are working on making something like this, I'd love to tell my computer 'give me something gloomy' and then 'but not too dark' and it would generate and iterate until it got something I liked. I just don't think it's quite ready for primetime. Unless of course you are just looking for feedback on the themes. In that case, I'd suggest you open up the comments on each theme page and allow rating anonymously.