Absolutely love the dye preview. It would be nice to be able to add a single bottle to multiple slots to see how it would work, particularly useful for black dye instead of having to have multiples to put in the slots.
Second enhancement would be to but a small up/down arrow on the side to allow you to keep the dye combo you have setup. You could move up and down on the different pieces of armor without having to put the dyes back into the window to see how it would look. For example, you try a dye combo on the top and set up the preview, then want to see how it looks on the pants, click the down arrow and voila!, down again, now the boots.
Edited for apparent lack of any grammar knowledge on my part.
C
