QuickPaint

[Paul Breslin]

QuickPaint itself should read in SGI format images. If I assume you mean
RGB images, QuickPaint should dither the image into the default NeWS
colormap and provide you with a warning that the image has been reduced
to 8 bits. Remember that QuickPaint is not an RGB paint program. It
operates in colormap mode and saves images in SGI color index format
along with a corresponding colormap file.