Examine source code of Digital Space

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#bababa",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Digital Space",
  "manifest_version": 2,
  "description": "Your browser is your shuttle to travel the digital universe, as well as an open plane from which you can edit and create. The Digital Space theme is a virtual take on the physical outer space, which captures this concept in both a literal and figurative sense.\n\nIn other words it's a drawing with cartoony stars and a space shuttle on a grid. Enjoy."
}