view_line_numbers_toggle is another good one to add ... i've recently been needing to see line numbers during diffing.
The other feature I was wishing for (when I started noticing the hscroller issues) is SoftWrap.
I've not tried enabling that yet - it would be interesting to see if/how DZ handles enabling that!
I'm not so sure ... I added it but it needs a little more work.For now I've added it to the table so you won't have to keep up with it yourself from version to version. In the future I'll try to add those tweaks to make it better, but for right now we've got to minimize changes, so I'm going to leave it at that.
First, you need to have a key binding - as there isn't one by default.
But then it would be good if the line numbers would turn on/off on both buffers at the same time - as is you have to manually switch it on for both.
Worse, it doesn't remember the setting - so when jumping between versions in backup history for example you have to keep turning it back on.
So, while I'd like for diff to support SpecialChars and line numbers (and highlights, and, and...), a bit more integration is needed to make these nice features.