Examine source code of BiteFight Persona

{
  "theme": {
    "images": {
      "theme_frame": "Header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#820202"
    }
  },
  "version": "2.0",
  "name": "BiteFight Persona",
  "manifest_version": 2,
  "description": "This is persona inspirated by BiteFight!\nFor BiteFight players!\nby Dzenis Pozegic\ndzenis96@hotmail.com"
}