Examine source code of let_s celebrate

{
  "theme": {
    "images": {
      "theme_frame": "Untitled.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#fce0b3"
    }
  },
  "version": "2.0",
  "name": "let_s celebrate",
  "manifest_version": 2,
  "description": "with help from Fraggie <a href=\"https://outgoing.prod.mozaws.net/v1/80ab052010338174948cf5847c494d68c2a885e47127c63e1f10bf7e4e49a8c4/http%3A//wallpaperstock.net/starfield-wallpapers_w28358.html\" rel=\"nofollow\">http://wallpaperstock.net/starfield-wallpapers_w28358.html</a> fireworks magic night sky sparks stars abstract lights boom little new year celebration congratulation party Starfield happy birthday"
}