Examine source code of Snowman John-Marc Grob

{
  "theme": {
    "images": {
      "theme_frame": "firefox_banner_snow.jpg"
    },
    "colors": {
      "frame": "#7bc7f2",
      "tab_background_text": "#111a3d"
    }
  },
  "version": "2.0",
  "name": "Snowman John-Marc Grob",
  "manifest_version": 2,
  "description": "Snowman and little kid, just when you wanted something cute and fun. Enjoy another cartoon design by Artist John-Marc Grob"
}