[Evolution] Color and icon by category

[Vincent Frison <turman ohmforce com>]

Hi,

I'm really surprised that there's no way in Evo to configure the
categories, e.g. define a color (for the Calendar) and icon (for the
Task) for each item of the Master Category List. I even don't find where
the category list is stocked (I have found no occurrence in ~/.evolution
or ~/.gnome2 directories). There is some very old related occurrences in
Bugzilla (e.g. wishlist #8910) but the feature doesn't to be implemented
yet..

Vincent