Examine source code of Evenscroll

{
  "manifest_version": 2,
  "name": "Evenscroll",
  "version": "0.511",
  "description": "Scroll evenly.",
  "icons": {
    "48": "icons/icon.png"
  },
  "commands": {
    "double-refresh": {
      "suggested_key": {
        "default": "Ctrl+Shift+V"
      },
      "description": "Refresh addon and page"
    }
  },
  "background": {
    "scripts": [
      "/js/bg.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "/js/utils.js",
        "/js/extra.js",
        "/js/main.js"
      ],
      "css": [
        "/css/style.css"
      ]
    }
  ],
  "options_ui": {
    "page": "/html/options.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "browser_style": true,
    "default_title": "Evenscroll",
    "default_icon": "icons/icon.png",
    "default_popup": "html/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e7612ae9-64fe-427e-9a83-6a33291b5bb8}"
    }
  }
}