It does not, however, change the symbol at the head of the bridge that you cast a spell on for your initial entrance test - that one glows when you cast the spell on it for the test and stays inert otherwise.
As an aside, that symbol used in the entrance test uses the "unused" glow maps implemented in Gate Glow - these symbols and the gate are actually the same texture, so while it may not necessarily have been intended for the gate like that mod assumes, I'd still highly recommend using it because it looks cool.
And, although the entrance test symbol actually glows a different color than was implemented in Gate Glow, I went ahead and based the glow color of these symbols on that of Gate Glow, as I figure consistency with something you'll see often is more important than consistency with something you'll see once.
A version with a subtle ENB particle light is also available, courtesy of Mur4s4me.
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No ESP, just a model replacement