# 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
# biosexternal - BIOS external boot loaders (USB, eSATA, etc.)
# cd - BIOS optical-disc boot loaders
# manual - use stanzas later in this configuration file
-# Default is internal,external,optical,manual
+# Note that the legacy BIOS options require firmware support, which is
+# not present on all computers.
+# On UEFI PCs, default is internal,external,optical,manual
+# On Macs, default is internal,hdbios,external,biosexternal,optical,cd,manual
#
#scanfor internal,external,optical,manual