Examine source code of Dusk Time

{
  "theme": {
    "images": {
      "theme_frame": "Clipboard01.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Dusk Time",
  "manifest_version": 2,
  "description": "First attempt at it, will try to do something more nice next time."
}