I'd love an alt mode that draws the pollution cloud with stripes instead of a solid colour like how demolisher zones are shown on Volcanus. And a mode that just shows the pollution outline with no fill.

Ideally I'd like to leave pollution view on so I can see what nests are being polluted but the red fill makes it hard to see anything.

Edit: Changing the pollution colour doesn't seem to work either. I set it to green but it still shows as red.

Color settings should be working in the most recent release. As far as I know, custom patterns for pollution are not supported by the Lua API.