The Pantheon draws each entity at about 160 pixels. The paintings behind them are 1456 by 2112. That gap has been sitting there since the first master arrived and it is now closed.
Click any entity and it opens. The drawing at the size the page could never give it, the epithet, the Force it binds, its Dominion and its Strike, and arrows to move through the rest without going back to the grid.
For the entities that carry a painting there is a Closer button, and it does something more than scale the picture up.
Scaling up is not zooming. A larger version of the same file is the same detail, softer. So the closer view is cut from the original painting rather than from the copy the page was already showing: a different crop, taken from the waist up, at its own resolution. The drips on Nyarlathotep’s hood, which have existed in the master since the day it was delivered, are visible for the first time.
It loads only when you press the button. Opening the lightbox costs nothing extra at all, because the full view is the same file the page had already drawn.
It does not walk from the twelve into the Empyreans. Those sit apart at the foot of that page because they belong to a campaign, and finding one by pressing an arrow key is not a thing you agreed to. The two sets step separately.
It also cannot show you an entity the page does not list. That sounds like a small thing. It is the reason the page filters what it prints at all: there is an entity in the game files that no level uses yet, and a bestiary that let you arrow into it would be telling you something the game has not.
Nine entities have paintings. The other seven are the line drawings, and in the lightbox they hold up better than the paintings do, because they are vectors and simply redraw themselves at any size.
That will reverse as more masters arrive. It is worth writing down, though, that the reason to keep commissioning them is not that the drawings are inadequate. It is that a painting can carry something at this size that a drawing does not attempt.