Examine source code of Planetoid 3 persona

{
  "theme": {
    "images": {
      "theme_frame": "Planetoid3firefoxbanner_top.jpg"
    },
    "colors": {
      "frame": "#a3a3a3",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Planetoid 3 persona",
  "manifest_version": 2,
  "description": "Planetoid 3 related firefox persona. Planetoid 3 is freeware game programmed by \"Elmzran\", the owner of TastyHamGames. Game is write in GML with Game Maker."
}