Any theories...

...as to why the 'Ring of the Evil Eye' eye appears as a symbol under your Stamina Bar on the HUD while TWoP is in effect?

I guess something to do with the dark beast that assaulted Astora? Yet another Dark Souls never-to-be-answered mystery...

I've never been TWoP'd so wouldnt know im afraid

It's actually when you cast it, not when you're affected by it.

Obviously there's no real answer...but I was just curious if people had come up with anything behind it.

Prob they did not had any symbol to use for TWoP so they just put a random one.

or perhaps from though that noone would be pedantic enough to care about it