Examine source code of Cosmic Space

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#5e5e5e",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Cosmic Space",
  "manifest_version": 2,
  "description": "Image is from Nasa (<a href=\"https://outgoing.prod.mozaws.net/v1/b3b9898c4d6cc70c3b1599ee10c8675b3a7d8428847e464c1776f2814b02c05d/http%3A//apod.nasa.gov/apod/\" rel=\"nofollow\">http://apod.nasa.gov/apod/</a>)"
}