A while back I made a theme called Core. It was full of snippets where different themes could be made just by inserting piece code. It was all copy and paste. Didn't seem to gain any ground so I left it alone. I've seen that comic book theme and it's really Emulation Station but art heavy. Aside from "times played" it looks pretty doable. Just need the theme to steal the artwork and find the fonts used.
Really, shouldn't be too hard. Just need to create Emulation Station base theme first. I've got a copy around here somewhere. I'll play with the idea and get back with some results.
Top of my head, menu 0 is simply the white rectangle in the middle with a horizontal scroll. I'd use a 2x2 white pixel and set the size for the rectangle. The rectangle would have the alpha set somewhere around ".7". The background looks like it is two levels underneath the rectangle and it alphas to "0" on menu scroll. A layer above that you have the control instructions on the bottom left. The "games available" pop down can't be done to my understanding.
Menu 1 = Logo on top right, Logo2 on top left. List on left middle with the selected item using a different color. Blah blah you get the point. Somebody throw me the art and I'll put something together.
As for a theme builder app, the world isn't ready for such a useful tool.
