Yellow sticker tips?

As I read it, the items will be repriced on the shelf, so won't be so obvious a bargain as with a bright sticker. In my Morries, the food is taken off the shelf to be  marked down and put back out together in a reduced display. I just head straight for those displays and rarely look at the full priced shelves.
It may save Morries staff from repricing but I'm not sure that they will sell as much old stock this way.

A flashing reduced price would be nice!