Hi, The 'light' colors defined in colo-imp-rgb.mkiv are not light! \definecolor [lightred] [r=1, g=0, b=0] \definecolor [lightgreen] [r=0, g=1, b=0] \definecolor [lightblue] [r=0, g=0, b=1] \definecolor [lightcyan] [r=0, g=1, b=1] \definecolor [lightmagenta] [r=1, g=0, b=1] \definecolor [lightyellow] [r=1, g=1, b=0] Is this intentional? How about replacing them with somewhat reasonable defaults? \definecolor [lightred] [r=1, g=0.5, b=0.5] \definecolor [lightgreen] [r=0.5, g=1, b=0.5] \definecolor [lightblue] [r=0.75, g=1, b=1] \definecolor [lightcyan] [r=0.5, g=1, b=1] \definecolor [lightmagenta] [r=1, g=0.5, b=1] \definecolor [lightyellow] [r=1, g=1, b=0.5] See attached output. These are not the ideal choices in terms of shades, but I have chosen values which are least subjective and still give reasonable shades. Aditya