We have done a minor update to fix some of the css issues as well as some issues around the item creation and amount usages.
Currently we are looking at adding new themes, but this probably wont be a quick thing as we need to look at updating the overall theme system and hooking it into the plugin mechanisms. There are also still some minor functionality and css issues which need addressing such as the notes and equipment components.
We will also be putting up a How To, for creating your own plugins soon. So keep your eyes peeled.