Examine source code of Despicable Me - 2

{
  "name": "Despicable Me - 2",
  "manifest_version": 2,
  "version": "2.1resigned1",
  "theme": {
    "images": {
      "theme_frame": "Despicable.jpg"
    },
    "colors": {
      "frame": "#e8e8e8",
      "tab_background_text": "#000000",
      "toolbar": "rgba(255, 255, 255, 0.21)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{75f71efe-fac9-445c-8915-65f106cabe52}"
    }
  }
}