Examine source code of ALTtext — Alt Text Generator

{
  "manifest_version": 3,
  "name": "ALTtext — Alt Text Generator",
  "version": "1.2.24",
  "description": "Generate accessible ALT text for any image — right-click, toolbar, or Bluesky auto-fill.",
  "homepage_url": "https://alttext.org",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "contextMenus",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://alttext.org/*",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "src/api.js",
      "src/background.js"
    ]
  },
  "action": {
    "default_title": "ALTtext — generate ALT text",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://bsky.app/*"
      ],
      "js": [
        "src/content-bluesky.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://x.com/*",
        "https://twitter.com/*"
      ],
      "js": [
        "src/content-x.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://mastodon.social/*",
        "https://mastodon.online/*",
        "https://mas.to/*",
        "https://mstdn.social/*",
        "https://fosstodon.org/*",
        "https://hachyderm.io/*",
        "https://infosec.exchange/*",
        "https://mastodon.art/*",
        "https://www.threads.com/*",
        "https://www.threads.net/*",
        "https://www.tumblr.com/*",
        "https://pixelfed.social/*",
        "*://*/wp-admin/*",
        "https://www.facebook.com/*",
        "https://www.instagram.com/*",
        "https://*.linkedin.com/*",
        "https://www.pinterest.com/*"
      ],
      "js": [
        "src/content-generic.js"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "match_about_blank": true
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "alttext@alttext.org",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}