Examine source code of Open With Photoshop

{
  "manifest_version": 3,
  "version": "115.0.6",
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "96": "images/icon96.png",
    "128": "images/icon128.png"
  },
  "permissions": [
    "storage",
    "downloads",
    "contextMenus"
  ],
  "background": {
    "page": "background/background.html"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f3f219f9-cbce-467e-b8fe-6e076d29665c}"
    }
  }
}