Examine source code of Dark Galaxy HD

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#19475e",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Dark Galaxy HD",
  "manifest_version": 2,
  "description": "More from my endless Space Pics Collection. Enjoy, my fellow space enthusiast galactards! Rate it if you get some time? Thanks & more to come.\n\n-PleaseStandBy"
}