I've updated my Racktables 0.19.10 installation to use custom colors by updating the config table color_% values. It's working quite nicely, however, the thumbnail images on the main Rackspace gallery (Main à Rackspace) still show up as the old colors. If I go into a rack and modify something on it (for example, add a new piece of equipment) the thumbnail is regenerated to the correct colors. How can I force *all* thumbnails to be automatically regenerated? Thanks! Jesse