Examine source code of Emoji Picker

{
  "manifest_version": 2,
  "name": "Emoji Picker",
  "version": "1.0",
  "description": "Browse, search, and copy emojis with a vibrant interface",
  "permissions": [
    "clipboardWrite"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Emoji Picker"
  },
  "icons": {
    "48": "icon.png"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{d3a0ca95-59fd-4a90-a37d-75481fced99f}"
    }
  }
}