QL-800 series: printing black/red/white labels (CLI: --red)

README.md

@@ -15,7 +15,7 @@ The following printers are claimed to be supported (✓ means verified by the au
 
 * QL-500 (✓), QL-550 (✓), QL-560, QL-570 (✓), QL-580N, QL-650TD, QL-700 (✓), QL-710W (✓), QL-720NW (✓), QL-800, QL-810W, QL-820NWB (✓), QL-1050, and QL-1060N.
 
-The new QL-800 series can print labels with two colors (black and red) on DK-22251 labels. This is not yet supported by this package.
+The new QL-800 series can print labels with two colors (black and red) on DK-22251 labels.
 
 ## Why
 
@@ -63,7 +63,7 @@ giving:
 
     usage: brother_ql_create [-h] [--model MODEL] [--label-size LABEL_SIZE]
                              [--rotate {0,90,180,270}] [--threshold THRESHOLD]
-                             [--dither] [--compress] [--no-cut]
+                             [--dither] [--compress] [--red] [--no-cut]
                              [--loglevel LOGLEVEL]
                              image [outfile]
     
@@ -90,6 +90,8 @@ giving:
                             set, --threshold is meaningless.
       --compress, -c        Enable compression (if available with the model).
                             Takes more time but results in smaller file size.
+      --red                 Create a label to be printed in black/red/white (only
+                            with QL-800, QL-810W, QL-820NWB on DK-22251 labels).
       --no-cut              Don't cut the tape after printing the label.
       --loglevel LOGLEVEL   Set to DEBUG for verbose debugging output to stderr.