# the big icons by stretching it in the middle. If only a big one is given,
# the built-in default will be used for the small icons.
#
-# Like the banner option above, these options take a filename of
-# an uncompressed BMP image file.
+# Like the banner option above, these options take a filename of an
+# uncompressed BMP image file with a color depth of 24, 8, 4, or 1 bits.
#
#selection_big selection-big.bmp
#selection_small selection-small.bmp