Examine source code of Photoshop planet

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#bdbdbd",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Photoshop planet",
  "manifest_version": 2,
  "description": "A planet I made in a couple of hours using only photoshop and a tutorial from Greg Martin. No outside images. the original image can be found at <a href=\"https://outgoing.prod.mozaws.net/v1/0891082a1c1e3047bdba7b6c3c85dede074c74bf156051bafc79723a692536ad/http%3A//www.grantspass.k12.or.us/Images/ImageManager/Ferrell_Space.jpg\" rel=\"nofollow\">http://www.grantspass.k12.or.us/Images/ImageManager/Ferrell_Space.jpg</a>"
}