Examine source code of Spider-man

{
  "theme": {
    "images": {
      "theme_frame": "h_spiderman.jpg"
    },
    "colors": {
      "frame": "#b3c1cc",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Spider-man",
  "manifest_version": 2,
  "description": "Spider-Man has become Marvel's flagship character, and has often been used as the company mascot"
}