pxart rotate

rotate FILE[:SEL] 90|180|270 [-o OUT]

usage: pxart rotate [-h] [-o O] [--replace] [--dry-run] file {90,180,270}

  rotate FILE[:SEL] 90|180|270 [-o OUT]    turn frames clockwise (a WxH frame becomes HxW)

positional arguments:
  file
  {90,180,270}

options:
  -h, --help    show this help message and exit
  -o O          OUT, or FILE:NEWGROUP to turn a copy of FILE:GROUP
  --replace     with -o FILE:NEWGROUP: NEWGROUP's frames go first, and the copy takes their place
  --dry-run     print what the edit says and a diff of the file it would change; write nothing

transpose (from pxart help all):
  transpose FILE[:SEL] [-o OUT]            mirror across the top-left/bottom-right diagonal
      For deriving path edges and corners from one tile. -o FILE:NEWGROUP turns a copy, as
      flip's. The shading turns with the pixels (a note says where the light went), so
      re-light with shade and outline --selective after.

See also, in pxart help all: FORMAT: pivots and timing (pivot=x,y, direction, repeat, ms);
  DRAWING (FILE[:SEL], KEY ('.' erases), clipping, 'painted N px'); EDITING (-o OUT gets the
  whole file, only changed lines are rewritten, 'no change'); FORMAT: selecting frames
  (FILE:SEL, an unnamed grid's name, zsh's "${F}:sel").

pxart help all has the whole reference, pxart help TOPIC one part of it.

This is the output of pxart help rotate. The other drawing commands and their shared notes are in pxart help DRAWING.