You give this new UI feature a spin by pouring just a tiny bit of the potion onto one of the ants. It glows blue and then shrinks down to about half its size, revealing that what you have is a shrinking potion! The ant is very confused, but that's a small (lol) price to pay for SCIENCE. Not that you know much of anything about science, because isn't a Science Quest and you are not a scientist.

5/6 of the bottle remains. You guess that using more of the potion would result in a more dramatic shrinking effect. This might come in handy later!