Examine source code of Resonance DB

{
  "theme": {
    "images": {
      "theme_frame": "hdresonance.jpg"
    },
    "colors": {
      "frame": "#7772ef",
      "tab_background_text": "#a4a1f0"
    }
  },
  "version": "2.0",
  "name": "Resonance DB",
  "manifest_version": 2,
  "description": "Firefox Persona version of my “Resonance” wallpaper. \n\n3D artwork by Ryan Bliss. Persona Designed by Mark Hamilton for Digital Blasphemy. \n\nWallpaper available at <a href=\"https://outgoing.prod.mozaws.net/v1/1ce79f49f4914a2b17bb2e2dd58849f4180cdff5301fa3c9200e5088f6497c8c/http%3A//digitalblasphemy.com/preview.shtml%3Fi=resonance\" rel=\"nofollow\">http://digitalblasphemy.com/preview.shtml?i=resonance</a>"
}