"shade":false

Hi, I want to make myself a neon block, something like maps with one color for illusions.
But I couldn't find such a parameter in MCreator.
I didn't find any information on the Internet, I only found a mod with this neon, but there are too many things in it that interfere with the game. I tried to move the line ""shade": false," from that mod, but the mod didn't want to work.
How can I disable shadows from different sides of the block using MCreator? Well, or is there another way to do this?