Examine source code of Ticket Link Copier

{
  "manifest_version": 3,
  "name": "Ticket Link Copier for Freshservice",
  "version": "2.1.3",
  "description": "Copy a linked Freshservice ticket number, with an optional short description, ready to paste as a clickable link.",
  "permissions": [
    "scripting",
    "clipboardWrite",
    "storage",
    "activeTab"
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "Copy Freshservice ticket link",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://helpdesk.flexera.com/a/*",
        "https://*.freshservice.com/a/*"
      ],
      "js": [
        "common.js",
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "commands": {
    "copy-ticket-link": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y",
        "mac": "Command+Shift+Y"
      },
      "description": "Copy the current Freshservice ticket as a link"
    }
  },
  "optional_host_permissions": [
    "https://helpdesk.flexera.com/*",
    "https://*.freshservice.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "ticket-link-copier-freshservice@flexera.jimallen",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}