I think you propably know but the orb of seasons is missing 1 color and items change design befor being completely washed over. EDIT: @TripDering and @res7less are propably right and this is intended behaviour. So I'd like to suggest that the grey should be changed to something different. (Maybe even something animated?)
I think that one blank orb returns the items to their original colors, as you can change colors for every item individually (when placing). Summer, Fall and Winter overwrite those set colors.
I'll change the thread title and move this to suggestions then. Grey is boring. Give me something fancy.