Colour shading should be turned off for the mono variant of the IMX296 sensor. To do this, set all the colour gain coefficients to 1. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <daivd.plowman@raspberrypi.com> Reviewed-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>