Hi there guys!
anuj asked me a little while ago, how to change the little images of the image screen on a theme preview. When I started to make a tutorial I got so carried away, that I ended up making a pretty detailed tutorial about making a theme preview in common.
I really hope this can be helpful for some people! Don't forget it's my first tutorial! Also my version of photoshop is in german, so I hope I translated everything correct!
Okay, enough excuses, just click on THIS LINK to see it!