Nice hack. They should just add a text-editor type area at the bottom of the dialog box where we can just manually type CSS for each style. Making it easy to extend existing styles.
Embedded SVGs don't render as well in versions that old. They recently did an update to fix a number of issues with embedded SVGs. I don't know what version fixed what but I know that 8.1.23 renders my SVGs nicely.
I thought I had seen something about a backend memory leak being fixed in a recent nightly build but I can't find it so I might have misread something.
You know, I did notice that if I needed to create a simple shape, my views loaded a little faster when I "drew" my shapes using styles on containers and labels instead of SVGs (example). I wonder if the recent fixes you mention are the reason why (and if now my SVG views might load around the same speed)? In any case, it's always nice to see the progress Inductive is making on improvements!
This is great, thank you!
If you haven't already, you may want to switch your map transform output to use style classes instead of raw strings.