Hi Tom,
I must say that while I think that a qt-based or javafx-based backend may be a good alternative, I don't think I personally have enough diplomatic skills to make that work (i.e.: I can't envision the default Eclipse being based on SWT from one of those backends -- and not because of technical issues -- it seems many which would be more suitable than me have tried and failed in the past, so, I'm not thrilled in trying to pursue that path).
What I'm interested in is finding a pragmatic way to improve on the current status quo with the tools I believe are available (which in this case is the current SWT implementation and the Windows UI API) and may be possible to accept as a pull request to improve on the current situation (without breaking the current behavior), as I think that has a higher chance of being accepted as effectively, nothing that is currently working should break if the themed scrollbar is not turned on.
Best Regards,
Fabio
