Examine source code of Dark Shadows 2

{
  "theme": {
    "images": {
      "theme_frame": "ds4.jpg"
    },
    "colors": {
      "frame": "#192573",
      "tab_background_text": "#f1eff7"
    }
  },
  "version": "2.0",
  "name": "Dark Shadows 2",
  "manifest_version": 2,
  "description": "dark shadows"
}