Examine source code of Alt Text Creator

{
  "manifest_version": 3,
  "name": "Alt Text Creator with GPT-4o",
  "short_name": "Alt Text Creator",
  "version": "1.2",
  "author": "Corbin Davenport",
  "description": "Creates alternate text for images using the GPT-4o model from OpenAI.",
  "homepage_url": "https://github.com/corbindavenport/alt-text-creator",
  "options_ui": {
    "page": "main.html",
    "open_in_tab": true
  },
  "minimum_chrome_version": "116",
  "permissions": [
    "contextMenus",
    "storage",
    "offscreen",
    "clipboardWrite",
    "notifications"
  ],
  "host_permissions": [
    "https://api.openai.com/*"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "icons": {
    "32": "img/icon_x32.png",
    "48": "img/icon_x48.png",
    "128": "img/icon_x128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "alttextcreator@corbin.io",
      "strict_min_version": "106.0"
    }
  }
}