Examine source code of Color Scout

{
  "manifest_version": 2,
  "name": "Color Scout",
  "version": "1.1",
  "browser_action": {
    "default_title": "Color Scout",
    "default_popup": "Popup/popup.html"
  },
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "color-finder.js"
      ]
    }
  ],
  "icons": {
    "48": "ColorScoutLogo48.png",
    "96": "ColorScoutLogo96.png"
  }
}