So, we now have some new options thanks to @AnTi’s offset patches and some tweaking by me. Angular Offset Side Asc will offset the dabs to either side of your ascension angle, so it doesn’t follow the direction but rather the angle of your stylus.
Offset Angle lets you adjust this from the default 90 degrees to whatever you want. Once we have barrel rotation input, you could have a flat brush that you can twist to change from thick to thin, like a real flatbrush.
Finally, I have a PR for a Base Brush Radius input setting. This is a hack to let us feedback the base brush size into the brush. With this we can make “high def” brushes that don’t “get fuzzy” when you make them bigger. Instead of increasing the dab size, for instance, you can just expand the dab offsets more and draw more dabs.