set-face-stipple
set-face-stipple is an interactive compiled Lisp function in `faces.el
'.
(set-face-stipple FACE STIPPLE &optional FRAME)
Change the stipple pixmap of face FACE to STIPPLE.
FRAME nil or not specified means change face on all frames.
STIPPLE should be a string, the name of a file of pixmap data.
The directories listed in the `x-bitmap-file-path' variable are searched.
Alternatively, STIPPLE may be a list of the form (WIDTH HEIGHT DATA)
where WIDTH and HEIGHT are the size in pixels,
and DATA is a string, containing the raw bits of the bitmap.