Examine source code of Ariana Grande Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#fce8e8",
      "tab_background_text": "#cccc95"
    }
  },
  "version": "2.0",
  "name": "Ariana Grande Theme",
  "manifest_version": 2,
  "description": "to fully view the theme please DO CUSTOMIZE YOUR TOOLBAR for instructions click here: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/e520e88387e6321da13c42999cb6a84a50e3f91a096aa60c5a809ad8a31f29ba/http%3A//kb.mozillazine.org/Toolbar_customization\">http://kb.mozillazine.org/Toolbar_customization</a>"
}