Examine source code of UploadImch

{
  "manifest_version": 3,
  "name": "UploadImch",
  "version": "1.1.1",
  "description": "Upload images directly to an Immich server from the right click menu.",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "webRequest",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "uploadimch@electricsteve.dev"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "UploadImch Options"
  }
}