Note: These brushes work for Clip Studio Paint.
Update 8/23/17
Many new brushes added. Existing tools were renamed and sorted into brush families for ease of identifying your favorites and remembering them later.
Update 1/7/16
New, revamped pencils, pastels, and charcoal brushes added.
Clip Studio has the most amazing brush engine of any drawing app I've ever used, but, let's face it, the default brushes sort of stink. I've been using the app, or its predecessors, since 2006 for professional work as an illustrator for folks like Nike, Burton, and Nickelodeon, and have been working on custom brushes to replace the lackluster defaults the whole time.
An area the default brushes falter more than any other is with textured, gritty brushes. This set gives your lines analog warmth, injecting them with the randomness that can make or break a piece.