I just pushed up tag v0.1.5 of my Basic Hugo Theme.
From the README:
While the official documentation about Hugo Templates does provide all of the pieces to get started creating a theme, it doesn’t necessarily put them together in one, easy-to-see-together place. This theme attempts to pull all of the necessary pieces together into a theme that can be used as a starting point to create more sophisticated themes.
This is the first version that I'm semi-officially announcing. I think it has all of the building blocks that I intended to use in a very basic theme, and the theme documentation is more-or-less complete.
I suppose I should go ahead and call it version 1.0, but I'll wait to see if any more flaws in it shake out from using it as the theme for my Personal Siite.