Examine source code of FMAB - Envy

{
  "theme": {
    "images": {
      "theme_frame": "Envy-4---Persona.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#00c90d"
    }
  },
  "version": "2.0",
  "name": "FMAB - Envy",
  "manifest_version": 2,
  "description": "A little Envy persona I made cause I couldn't find a good one."
}