sample.msg
Note that <Ctrl-P>...<Ctrl-W> can be used to delimit something
that is effectively a comment.
This message is displayed before the image.
syslogo.lss
This message is displayed after the image.

Please note colors do not work quite as expected in graphics mode!

04 RED 07 02 GREEN 07 01 BLUE 07
47 RED 07 27 GREEN 07 17 BLUE 07