IDL colors

To get IDL colors to 'work right' (i.e. a colortable has 255 colors etc), put this in a startup file:

device, true_color = 24, retain = 2, decompose = 0
red = [0,1,1,0,0,1]
green = [0,1,0,1,0,1]
blue = [0,1,0,0,1,0]
if not strcmp(getenv('DISPLAY'),'') then $
   tvlct, 255*red, 255*green, 255*blue