elisp: Other Image Types

 
 37.17.7 Other Image Types
 -------------------------
 
 For PBM images, specify image type ‘pbm’.  Color, gray-scale and
 monochromatic images are supported.  For mono PBM images, two additional
 image properties are supported.
 
 ‘:foreground FOREGROUND’
      The value, FOREGROUND, should be a string specifying the image
      foreground color, or ‘nil’ for the default color.  This color is
      used for each pixel in the PBM that is 1.  The default is the
      frame’s foreground color.
 
 ‘:background BACKGROUND’
      The value, BACKGROUND, should be a string specifying the image
      background color, or ‘nil’ for the default color.  This color is
      used for each pixel in the PBM that is 0.  The default is the
      frame’s background color.
 
 The remaining image types that Emacs can support are:
 
 GIF
      Image type ‘gif’.  Supports the ‘:index’ property.  See
      Multi-Frame Images.
 
 JPEG
      Image type ‘jpeg’.
 
 PNG
      Image type ‘png’.
 
 SVG
      Image type ‘svg’.
 
 TIFF
      Image type ‘tiff’.  Supports the ‘:index’ property.  See
      Multi-Frame Images.