Examine source code of AKIRA Lens

{
  "manifest_version": 2,
  "name": "AKIRA Lens",
  "description": "AKIRA Lens fashion discovery browser extension.",
  "homepage_url": "https://shopAKIRA.com",
  "version": "0.2.2resigned1",
  "icons": {
    "16": "assets/icon-16.png",
    "32": "assets/icon-32.png",
    "48": "assets/icon-48.png",
    "64": "assets/icon-64.png",
    "128": "assets/icon-128.png"
  },
  "browser_action": {
    "default_title": "AKIRA Lens",
    "default_icon": "assets/icon-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "tabs",
    "activeTab",
    "contextMenus",
    "storage",
    "*://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{43a3b288-571d-4d98-8454-375d791bf291}"
    }
  }
}