Examine source code of Peta2- Punk

{
  "theme": {
    "images": {
      "theme_frame": "peta2punkhead.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#f7f7f7"
    }
  },
  "version": "2.0",
  "name": "Peta2- Punk",
  "manifest_version": 2,
  "description": "Enjoy! :D Please help Peta2 continue their cause for the sake of animals everywhere at <a href=\"https://outgoing.prod.mozaws.net/v1/13960c32183b145f93f7570ec10c81ff1bd73212bce968468fc99e8e0f01c10c/http%3A//peta2.com\" rel=\"nofollow\">peta2.com</a>!"
}