Examine source code of Browser Copy Assistant

{
  "manifest_version": 2,
  "name": "Browser Copy Assistant",
  "version": "1.0",
  "description": "Tracks copied text across browser tabs and allows viewing, copying, and downloading the selected texts.",
  "permissions": [
    "clipboardWrite",
    "clipboardRead",
    "storage",
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Browser Copy Assistant",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": true
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8e080306-40ce-4895-bf8e-cc9e3c9f31f6}"
    }
  }
}