Notice: this information was written when Microthemer version 2 was current. On Dec 26th, 2014 version 3 was released with a completely new interface. Some of the information may be redundant, but as much of
the functionality remains the same in version 3 we haven't deleted this post.
I’m beginning to find MicroThemer kinda cool to use.
The more I use and understand it, the more I like it. I hope it sticks around for the long term.