Examine source code of TypeShift

{
  "manifest_version": 3,
  "name": "TypeShift",
  "version": "1.0.1",
  "description": "Switch fonts on any website. 50+ built-in styles, per-element targeting, accessibility modes and more.",
  "permissions": [
    "storage",
    "tabs",
    "fontSettings"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "TypeShift",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "fonts/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "typeshift@typeshift.dev",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "browser_specific_settings": {
          "gecko": {
            "id": "typeshift@typeshift.dev",
            "strict_min_version": "109.0",
            "data_collection_permissions": {
              "required": [
                "none"
              ]
            }
          },
          "gecko_android": {
            "strict_min_version": "120.0"
          }
        }
      }
    }
  }
}