Examine source code of Tweet Selector

{
  "manifest_version": 2,
  "name": "Tweet Selector",
  "version": "1.0",
  "icons": {
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "permissions": [
    "activeTab",
    "https://api.openai.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://x.com/*",
        "*://twitter.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "icon-select.png",
    "icon-selected.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{74aaf936-d20b-42b3-aeee-aa85c2349b95}"
    }
  }
}