so now there are just a bunch of jpgs with nothing in them? Kinda silly. You could just run them through a program like
jpgclean so at least they're smaller and actually have something in them
How many people will use those wallpaper? Wallpaper is usually the very first thing changed on a phone. It's the fastest, simplest personalization you can do on a phone.
As for how this rom is constructed, you miss the point.
I provide a basic fully functioning rom, with a few statusbars.
You provide the wallpaper and your favorite launcher.
In the end you get a very fast, very small rom, themed how you want.
I don't provide:
Ringtones you won't use
Wallpaper you won't use
Apps you won't use.
Bootanimation you won't use.
I just give you the basics, you do the rest.
Harmonia is kind of a "build-your-own-theme" rom.