Examine source code of Link in New Tab

{
  "manifest_version": 2,
  "name": "Link in New Tab",
  "version": "1.3.0",
  "description": "Opens links in new tabs",
  "icons": {
    "96": "plusgreen.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "contextMenus",
    "cookies"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "browser_style": true,
    "default_title": "Toggle opening links in new tab",
    "default_icon": {
      "96": "plusgreen.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "commands": {
    "toggle-active": {
      "suggested_key": {
        "default": "Alt+N"
      },
      "description": "Toggle opening links in new tabs"
    }
  }
}