existential block is confusingly displayed

[rogpeppe]

The existential block is displayed in my browser like this:

After some pondering, I think the inner part of the block should show P(c) and Q, and we're seeing some overlaid text, but that's not clear from the display, and without any additional explanatory text, it's hard to know how it's meant to work.

[nomeata]

You can expand the block; the initial width is indeed unfortunate and could be fixed.

[rogpeppe]

I don't believe it's possible to expand the block in-place, although it can be dragged onto the canvas and expanded there (although then you need to drag out some connectors to see what the function of the block is).