I spent a little time continuing with the planets generator, but more time reading, and the only time I spent writing was this blog entry. The gas giant coloring is a little better, but I need to do some refresher reading on why the gas planets have the colors they do. Also, the implementation needs adjustments to be a bit less symmetrical in terms of color layout.
I did some sample rocky worlds, but they also need a bit of adjustment. Impact craters are needed, for example.
My attempts at following F. K. Musgrave's example for a Venus-like world, described in section 5.4 of his dissertation, isn't coming out quite right. OK, it isn't coming out even remotes right. I think I shall need to do some additional investigation - this was supposed to be adding horizontally-steaked clouds to a yellowish world!