Examine source code of Farcry Primal

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#fa9c05",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Farcry Primal",
  "manifest_version": 2,
  "description": "Design By Charupriya Salgado \nColombo,Sri Lanka.\nsalgadocharupriya@gmail.com\nThis is my first mozilia firefox theme."
}