scarab colors are inconsistent with importance colors

[Martin Pool]

Launchpad colors the little scarab beetle icon for bugs according to their importance, and also uses colors for the 'importance' field in bug task tables and bug listings.

However, the two sets of colors are substantially different: a Medium bug has an orange scarab and but green importance text.

Since the importances do form a continuum, perhaps the colors should also be on a continuum of intensity (as is suggested by the book 'Information Dashboard Design' for instance.) The scarabs are pretty close to this now except that 'wishlist' is a fairly bold blue and should be a muted color.