Hey all! I've found a way to (sort of) allow higher resolution exports from the tool.

Just click the fullscreen button in the bottom right corner pictured below:

Then use the tool as usual. Because of the way the tool exports, it will export your image at whatever resolution your screen is while in fullscreen mode. This means that if you have any resolution that isn't 1080p monitor, you can make the tool export in that resolution!

I'm considering adding a more concrete way to change the export resolution in the future but in the meanwhile hopefully this can help anyone wanting a higher resolution export!

Click here to see a comparison!