COLOUR_QL is a command used to select the colour palette to be used from within the Extended Colour Drivers provided with SMSQ/E v2.98+ on the Q40/Q60, QXL, QPC and Aurora.
A valid window channel must be open, default #1 (or #0 on a SBASIC with only #0 open), although one may also be supplied as #ch.
This command is similar to COLOUR_PAL, but selects an 8 colour mode, with colours from 0…7 as per the original QL MODE 8 (although all 8 colours remain available for programs which presume MODE 4).
This can cause some slight incompatibility problems, due to programs which presume that under MODE 4, INK 3 would produce Red (for example) - under COLOUR_QL it will now produce Magenta.
The eight colours produced under COLOUR_QL may be changed to allow any colour supported by the hardware using the command PALETTE_QL.
MODE commands have no effect under the Extended Colour Drivers.
Refer to COLOUR_PAL for more details.