Mostly set up the main drawing activity - needs some jazzing up with icons
and such, methinks, but that's not crucial. Only major thing is that I
need to get recording to work, and need to get multi-activity stuff going.
Presently, you are able to spawn the palette activity, but that activity
looks like shit and is not working in a few ways (doesn't return back off
of the OK or CANCEL buttons, and mixing colors isn't working for some
reason)