I'm not sure what the best part is: the fact that ADL somehow classified pepe as a white supremacist icon, or the fact they got trolled into doing that.
Mad props to whoever made this. Tritium is one of the only radionuclides that will glow green when interacting with Phosphor. The other two are Radium and Promethium. Everything else with only glow blue if it can generate enough Cherenkov Radiation.