Examine source code of Mystifying pink

{
  "theme": {
    "images": {
      "theme_frame": "firefox_persona_footer.jpg"
    },
    "colors": {
      "frame": "#541721",
      "tab_background_text": "#d4358a"
    }
  },
  "version": "2.0",
  "name": "Mystifying pink",
  "manifest_version": 2,
  "description": "Just something I decided to make so I could have a nice theme on my Firefox. Hopefully others enjoy it as well!"
}