Examine source code of space nebula

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#e81919",
      "tab_background_text": "#080808"
    }
  },
  "version": "2.0",
  "name": "space nebula",
  "manifest_version": 2,
  "description": "this is a simple theme to give a red-ish pink-ish color of a nebula. i got the picture from <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/e8fe8059f8767dd795ce22efbf3d63d80663972d99428f90d2507537816bbc43/http%3A//wallpaperswide.com/vyoletz_nebula-wallpapers.html\">http://wallpaperswide.com/vyoletz_nebula-wallpapers.html</a>"
}