PICT supported vector commands like FrameRect and FillOval, bitmap commands like BitsRect, and even embedded PostScript via PicComments.

Version 1 PICTs: https://show.docjava.com/posterous/file/2012/07/9614411-DOC0...

I have the Version 2 documentation around here somewhere. I don't think I've looked at it in 20 years, though.