Version 1.3 is released.
I fixed a rotation issue where angles close to 45 degrees were visibly smaller as a result of weirdness I described in a post above. Thanks to @Eli for bringing my attention back to that issue.
I made a Preferences button under the 'other' tab that opens a little window where you can browse and add folders on your computer that Brush Factory should scour when it starts. The textbox is editable, so you can type any reasonable folder or file path in there. It will handle both of them. The brush location settings are stored permanently.
I released it a little early (day after last update) because I start another quarter of college tomorrow, which means I'll focus less on this and more on school. But I'll still visit to see what I can do and what I can work on, so please keep addressing concerns. I'll have to face that alpha issue sometime