ppmpat

Produce a PPM image with a pattern. More information: https://netpbm.sourceforge.net/doc/ppmpat.html.

• Produce a PPM file of the specified pattern with the specified dimensions:

ppmpat -gingham2|gingham3|madras|tartan|poles|... width height > path/to/file.ppm

• Produce a PPM file of a camo pattern using the specified colors:

ppmpat -camo -color color1,color2,... width height > path/to/file.ppm