Examine source code of PhotoShow

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDesc__",
  "version": "4.90.0",
  "version_name": "4.90.0",
  "author": "Vincent W.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{c23d8eea-4e71-4573-a245-4c97f8e1a1e0}",
      "strict_min_version": "128.0"
    }
  },
  "default_locale": "en",
  "icons": {
    "16": "resources/icon16.png",
    "32": "resources/icon32.png",
    "48": "resources/icon48.png",
    "64": "resources/icon64.png",
    "128": "resources/icon128.png"
  },
  "action": {
    "default_icon": {
      "16": "resources/icon16.png",
      "32": "resources/icon32.png"
    },
    "default_title": "__MSG_extensionName__",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background/background.js"
    ]
  },
  "devtools_page": "background/devtools.html",
  "options_page": "options/options.html",
  "web_accessible_resources": [
    {
      "resources": [
        "content/common.css",
        "resources/fira-code.woff2",
        "resources/nunito.woff2",
        "resources/nunito-sans.woff2",
        "resources/photoShowIcons.woff2"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "commands": {
    "TOGGLE_PHOTOSHOW": {
      "suggested_key": {
        "default": "Alt+P"
      },
      "description": "__MSG_extensionKeyboardShortcutDesc_toggle__"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; connect-src * data:"
  },
  "permissions": [
    "contextMenus",
    "declarativeNetRequestWithHostAccess",
    "downloads",
    "scripting",
    "storage",
    "tabs",
    "webNavigation",
    "webRequest"
  ],
  "optional_permissions": [
    "clipboardWrite"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "net-request-rule-set___common-settings",
        "enabled": true,
        "path": "net-request-rule-sets/_common-settings.json"
      },
      {
        "id": "net-request-rule-set__instagram.com",
        "enabled": false,
        "path": "net-request-rule-sets/instagram.com.json"
      }
    ]
  }
}