Examine source code of Grey Assassin

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#8fa5ba",
      "tab_background_text": "#435763"
    }
  },
  "version": "2.0",
  "name": "Grey Assassin",
  "manifest_version": 2,
  "description": "Mist and dna back with assassins creed logo"
}