Not sure if this is the right place to ask this, but does anybody know what brush Proko uses when sketching digitally in his Drawing Basics course? I know he uses a physical pencil in a lot of those lessons, but when he's doing a demo digitally (such as in the "Critique - Learning to Sketch from Observation" lesson, from the lines section of the course), I really love how expressive and versatile that brush seems. I attached a screenshot of something he drew with the brush to help identify it. If anybody knows where I could find it, I'd really appreciate it!