yep, that about sums it up. this is a virtual version of an experiment called “Thin-layer chromatography”.
What you do is to put a sheet of special paper in a chamber that is filled with liquid and let the liquid run up the paper due to capillary forces. So basically, there is a bunch of solvent at the bottom of the chamber and the paper soaks it up so that a linear front of solvent propagates up the paper upwards. I made a small explanation in powerpoint to keep it comprehensible.
So both the chamber as well as the paper need to be blueprints as far as I can tell.