Was that a boombox I saw? ; ) Can't wait for the next one!

I can't figure out what I'm supposed to be doing with these gems. There doesn't appear to be anything else to do.

I am following the instructions, but the game is not working. It registers the first click, but won't allow me to select an area/rectangle. I am using chrome, which I assume is just not compatible, but if that's true it should be mentioned in the description. I am very disappointed as the game seems very appealing otherwise. But that doesn't really matter if I can't even play it.

Oh... oh my god. I love this. I can't even.