I've deleted all urls in the config (because I don't want any icons), but there is still a black radiation icon to the left.  Not sure where it's coming from, but is there any way to remove it, as well?

Here's a link to the image: 

just make it false
"Radiation": {
"AnchorX": "Left",
"AnchorY": "Bottom",
"Autoload": true,
"Available": true,

Did that.  Didn't remove it.  I just adjusted the Left margin or whatever and that "fixed" it.  Would still like to be able to remove the image altogether.

is there a way to get the radiation to work?

"ActiveColor": "0 1 0 1",
"InactiveColor": "0 0 0 0"

yet it always shows yellow even in no radation.

MrWolfRanger

is there a way to get the radiation to work?

"ActiveColor": "0 1 0 1",
"InactiveColor": "0 0 0 0"

yet it always shows yellow even in no radation.

I use monument radiation plugin and it works just fine