1 files changed, 1 insertions, 0 deletions
diff --git a/src/modes.py b/src/modes.py
index 9c308875..efb69737 100755
--- a/src/modes.py
+++ b/src/modes.py
@@ -543,6 +543,7 @@ modes = [
     #mode_WHAT('DECGPCM', 44, default=False),
 
     # DECGCPS - Graphics Print Colour Syntax
+    # If set, uses RGB colour format; if reset, uses HLS colour format.
     #
     # Default: reset
     #