Examine source code of Lazygur

{
  "manifest_version": 2,
  "name": "Lazygur",
  "description": "Lets you browse Imgur without having to change pictures manually, just press Shift+Ctrl+Right arrow and relax!",
  "version": "2resigned1",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_icon": "icon128.png"
  },
  "commands": {
    "toggle-feature": {
      "suggested_key": {
        "default": "Ctrl+Shift+Right"
      },
      "description": "Starts and stops the auto browse"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://imgur.com/*"
      ],
      "js": [
        "jquery-3.2.1.min.js",
        "auto.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": [
    "wheel.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0f173df6-2925-4bd3-b9fb-c54d5da66f30}"
    }
  }
}