This is honestly a lovely tool, thank you.
I can't seem to figure out how to use custom brushes. When I click create brush nothing happens. Pattern fill is also not working for me.
I'm a macOS user and well, most of the programs I run are unsigned and I'm used to fixing that. But this is a bit different, and modifying gatekeeper doesn't seem to affect the "damaged program warning", at least for me. Normally the warning for gatekeeper is different.
I tried changing the file to executable, and ultimately the only thing that actually worked for me was downloading the source and exporting it using godot. I can try and do a bit more testing if that helps.