Thanks for the kind comments.
The next version is well under way, but no more flavours I'm afraid - I have a limit on window height (it must work with small screen heights, such as with netbooks). I could have added a couple more flavours, but I have used the space I made for them for something else, a bit more interesting...
As for producing a 'Pro' (shareware) version, I am hoping that this will not be necessary. I am working hard to get two of the new features incorporated without having to
buy new tools, which are very expensive. If I succeed, then all the new features will be added to the new version, which will still be free.