Icons, Cleaned up layouts, rough draft of explanations

This is the cleaning portion of the project where we put on the French
maid outfits, get out the little blue feather duster, and… wait! That
isn't this project. Here we should actually be clicking and running
everything, entering some odd input and trying to break everything. It
is also a good time to make pretty icons and align the layouts so they
don't look sloppy.