FFGN would be a purple (0xFF591B69) solid in either the powered materials or the electronics category. It could be destroyed by the same pressure as wifi (turning into brel) and it wouldn't conduct heat. It would spawn at -136.55 C (136.55 K), and its life would be 0. When it is sparked, it will create a circle of blue (0xFF0A6BA9) bray with a life of 1 and a tmp of 3 that's size is relative to the FFGN's temperature (max=273 min=-273). Each time the FFGN is sparked, the bray's life is increased by 1 (max=4000), If it is not being sparked then the life will go down slowly, When it reaches 0 then it will dissappear. The bray will allow liquids, powders and gasses through freely but energy particles (and fire and plasma) will be deleted and change the life of the bray by their temperature divided by -1000 rounded up to the nearest whole number. When the life of the bray is 0 or less then it will change the life of the FFGN to 220 and delete the circle of bray. The life of the FFGN would count down until it reaches 0 and then it would work again as usual.
If there were 2 forcefields next to each other they would combine.
The bray could block ambient heat if it isn't too hard to code.
It could block electricity like insl but there wouldn't be much point to that.
Changing the deco colour of the FFGN changes the deco colour of the bray that is creates.
Uses: Protection, laser targets, decoration, a way to block ambient heat on things that have to be destroyable.
Here is my original suggestion for this, it is really just useful to see what it looks like
I hope this isn't too confusing, most of my element suggestions are.
Who wants something you can mess around with in real life in a game made to simulate NOT REALITY? I would gladly take something impossble in TPT over something that exists in real life.
"Mess around with in real life?" A strip of Palladium 6mm in diameter and 50mm in length costs $1,600.
Besides, Palladium and Potassium WOULD be fun. The more reactions you have to work with, both realistic and unrealistic, the more you can do and the more fun you could have.
To be on topic, I like the forcefield idea.