Released gravity.inked v1.2. This was a really small update to add a dark background option to the Settings screen. More screenshots on the media page.
The second image includes an effect trail that I’ve been using, but isn’t a preset. To create it start with Triangle Power -> Change shape to Star -> Change start color to yellow -> Then mess with lifetime/pattern/whatever. I was thinking it’d be cool to make a way to upload custom trails people made, but that’s a lot of work for another day.