I fear it doesn't work like that.
Sorry to necropost this by a month but you cannot alter the colour of a Proton, Neutron, Gravtion, or Electron.
Use square glass.
you can deco energy particles, it just doesn't change the default glow.
To deco an energy particle, you have to set a flags value to 0x8 to said energy particle, and flags can't be published along with a save.