Made my own square pens!
Silly Square Pen: Square pen with some pressure to it. good for line art, sketching, flat shading, ect.
Silly Square Pen Hard: Square pen with no pressure to it. good for line art. sketching, painting. ect.
Silly Square Pen Hard: Square pen with no pressure to it. good for line art. sketching, painting. ect.
Silly Square pen opacity: It's like the SSP but with opacity, good for sketching, or blending, rendering , painting ect.
Silly Square Hard Opacity: Again just like SSPH but with opacity. Very good for rough sketches and rough renders ect.

Example of use in a piece (everything was done with these brushes except for the background and some light air brushing)

Category 1