Examine source code of Blizzard high definition

{
  "theme": {
    "images": {
      "theme_frame": "Blizzard1.jpg"
    },
    "colors": {
      "frame": "#6f9bf2",
      "tab_background_text": "#71f08c"
    }
  },
  "version": "2.0",
  "name": "Blizzard high definition",
  "manifest_version": 2,
  "description": "remake of lightning nightmare"
}