Add Delirium fog indicators of direction (maybe red outliner of the Fog edge)

I have done many maps with Delirium encounter (fog), and every single time this encounter ends within 1 min.

I just cant figure out where the Delirium fog is going.

Either the map is very narrow and i cant stay within the fog, or i go opposite direction of the fog. No indicators where the fog is going.
Yes i watched many videos, trying to figure the direction of this fog but with little result. Its annoying.

Why don't you put outliner of the fog edge (lets say with red color) so when the fog is moving, i can see the red line outlining the fog edge and i can see where the fog is going??? Similar to the breach mechanic.