Examine source code of Time Track

{
  "name": "Time Track",
  "version": "0.6.7",
  "description": "Time tracking for Jira & ClickUp",
  "manifest_version": 2,
  "icons": {
    "16": "img/logo-16.png",
    "32": "img/logo-32.png",
    "48": "img/logo-48.png",
    "128": "img/logo-128.png"
  },
  "permissions": [
    "storage",
    "cookies",
    "*://*.atlassian.net/*",
    "*://*.clickup.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7d47e4ad-f46a-4c52-8b18-9563ff14f0ac}"
    }
  }
}