Reduced visibility under the fields in the latest version of the game (2.103.3).
The latest update is a real nightmare, released on Halloween. Here's a look at the visibility of the portals. They are not visible under the fields!
What are those dots?
Green portals are hard to see under green fields
Is it possible to replace the texture with a gradient that would not reduce visibility?
Neutral portals are like exotic matter. They are tiny when viewed from above. They are also hard to spot.
And yes, from below the fields we see an animation similar to floating clouds, this is wonderful, so why do we see ugly, miserable squares from above?