Examine source code of Social visual alt text

{
  "name": "Social visual alt text",
  "description": "Visually show alternative text of social media images",
  "version": "0.10.0",
  "manifest_version": 2,
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "js": [
        "src/common.js",
        "src/mastodon.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://twitter.com/*",
        "https://x.com/*"
      ],
      "js": [
        "src/twitter.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://tweetdeck.twitter.com/*"
      ],
      "js": [
        "src/tweetdeck.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://www.instagram.com/*"
      ],
      "js": [
        "src/instagram.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://www.linkedin.com/*"
      ],
      "js": [
        "src/linkedin.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://www.facebook.com/*"
      ],
      "js": [
        "src/facebook.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://bsky.app/*"
      ],
      "js": [
        "src/bluesky.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "https://www.threads.net/*"
      ],
      "js": [
        "src/threads.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "/images/visual-alt-16.png",
    "32": "/images/visual-alt-32.png",
    "48": "/images/visual-alt-48.png",
    "128": "/images/visual-alt-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d63bf015-2002-4ef8-96dc-b99bab518ec9}"
    }
  }
}