I was playing with a friends copy of paintshop pro the other day and found the option to arrange the colour palette in order of luminosity, which would be really useful to me. Is there any way to do it in photoshop. I can't think of any method appart from doing it manually which would be really tedious! Failing a method using photoshop maybe it would be possible to import palettes from paintshop pro? Even if you can do that I have a feeling that they'd come in unsorted. Any ideas? Baz