Beat/baseline images

I was starting to make a new theme, which is incomplete. But in the process, I made some beat/baseline images that I think look pretty nice:





Kinda similar to FL studio.

I realize that you guys need to focus more on the program itself than the skinning, so I'll stop bugging you for themeability. But once in a while I decide to re-skin some elements, so if it turns out good, I'll post it here. Those volume knobs are annoying me...how's this instead?:

One thing, though, that I would like to see (and would be simple) is step_btn_on_yellow_light.

As a side note, the images for pressed keys (for piano roll) are in the theme folder, but are not used ;)