Examine source code of TaskBill.io

{
  "manifest_version": 2,
  "name": "TaskBill.io",
  "short_name": "TaskBill",
  "version": "0.1.11",
  "description": "TaskBill provides a quick and easy way to track time spend on tasks and bill your clients.",
  "permissions": [
    "https://taskbill.io/",
    "storage"
  ],
  "content_scripts": [
    {
      "js": [
        "jquery-3.4.1.min.js",
        "content.js"
      ],
      "matches": [
        "https://app.asana.com/*",
        "https://3.basecamp.com/*",
        "https://*.monday.com/*",
        "https://taskbill.io/*"
      ]
    }
  ],
  "options_page": "options.html",
  "browser_action": {
    "default_title": "TaskBill.io",
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{61610489-0030-4415-94bb-211256db44f5}"
    }
  }
}