Do not merge.

src/components/App.tsx

@@ -567,6 +567,7 @@ class App extends React.Component<AppProps, AppState> {
                     value={this.actionManager}
                   >
                     <LayerUI
+                      test={<div />}
                       canvas={this.canvas}
                       appState={this.state}
                       files={this.files}

src/components/LayerUI.tsx

@@ -52,6 +52,7 @@ import { useAtom } from "jotai";
 import MainMenu from "./main-menu/MainMenu";
 
 interface LayerUIProps {
+  test: JSX.Element;
   actionManager: ActionManager;
   appState: AppState;
   files: BinaryFiles;