It’s been a while that I don’t go check his web site but if I remenber correctly he had a list of his most used brushes there and they were all default brushes from Painter 6 or 7 (can’t remenber).
I’m not the best person to answer you this, there a lot’s of people that know a lot more about Painter then me in this forum but you may try this:
Dry Media: Square Chalk
Select “Chalk” and “Square Chalk” as variant
Brush: Camel Hair Brush
Select “Oils” and “Round Camelhair” as variant (not too sure about this one)
Dry Media: Square Chalk Eraser
I didn’t found a equivalent one in Painter 8 but you can do the following
[li]Select “Chalk” and “Square Chalk” as variant[/li][li]Hit Control (Command)+B[/li][li]In “General” tab (properties) change the “Method” to “Eraser”[/li][li]Hit Control (Command)+S[/li][li]Give a name to the variant, like “Square Chalk Eraser” for instance.[/li][/ol]I hope this helps in some way.
See you around,