Or some sort of indicator that your sugar lumps are providing this benefit. I had 30 sugar lumps with the Sugar Baking upgrade and spent them leveling up items and was shocked to see my CPS dropping dramatically after spending them. I thought it was a bug until I remembered there was a sugar lump specific upgrade. It would be nice to see this somewhere onscreen.
I suggest it be added to the data you see when you mouse-over sugar lumps. "Your XX sugar lumps are currently producing an additional YYY CPS"