This project is currently being supported. At the moment you can only save in the one format (png) however we have an update branch (still in testing) that has multi-format support starting with raw TGA format (for speed) which will expand to other formats once that infrastructure is there. We're also looking into an alternate source release (or at least source included as a zip) for those that prefer source access. Regarding that ugui bug: we have a few experiments in mind for next year to address that. Since Unity 5's release and the removal of the differences between "indie" and "pro" versions of Unity there are a few more options available to us in order to work around the problem and I'm fairly confident a solution can be found to this in 2016.