basic content for the help dialog, see #249

js/quadrilateral-main.ts

@@ -38,6 +38,9 @@ const simOptions: SimOptions = {
     thanks: ''
   },
 
+  //
+  hasKeyboardHelpContent: true,
+
   // preferences configuration with defaults from package.json
   preferencesModel: new PreferencesModel( {
     simulationOptions: {

js/quadrilateral/QuadrilateralScreen.ts

@@ -12,12 +12,14 @@ import QuadrilateralModel from './model/QuadrilateralModel.js';
 import QuadrilateralScreenView from './view/QuadrilateralScreenView.js';
 import QuadrilateralPreferencesModel from './model/QuadrilateralPreferencesModel.js';
 import optionize, { EmptySelfOptions } from '../../../phet-core/js/optionize.js';
+import QuadrilateralKeyboardHelpContent from './view/QuadrilateralKeyboardHelpContent.js';
 
 class QuadrilateralScreen extends Screen<QuadrilateralModel, QuadrilateralScreenView> {
   public constructor( preferencesModel: QuadrilateralPreferencesModel, providedOptions: ScreenOptions ) {
 
     const options = optionize<ScreenOptions, EmptySelfOptions, ScreenOptions>()( {
-      backgroundColorProperty: QuadrilateralColors.screenBackgroundColorProperty
+      backgroundColorProperty: QuadrilateralColors.screenBackgroundColorProperty,
+      keyboardHelpNode: new QuadrilateralKeyboardHelpContent()
     }, providedOptions );
 
     super(

js/quadrilateral/view/QuadrilateralKeyboardHelpContent.ts

@@ -0,0 +1,24 @@
+// Copyright 2022, University of Colorado Boulder
+
+/**
+ * The keyboard help content for the Quadrilateral sim. This has yet to be designed and is just ready for more content.
+ * TODO: Finish this in https://github.com/phetsims/quadrilateral/issues/249
+ *
+ * @author Jesse Greenberg (PhET Interactive Simulations)
+ */
+
+import quadrilateral from '../../quadrilateral.js';
+import BasicActionsKeyboardHelpSection from '../../../../scenery-phet/js/keyboard/help/BasicActionsKeyboardHelpSection.js';
+import { Node } from '../../../../scenery/js/imports.js';
+
+class QuadrilateralKeyboardHelpContent extends Node {
+  public constructor() {
+    const generalContent = new BasicActionsKeyboardHelpSection();
+    super( {
+      children: [ generalContent ]
+    } );
+  }
+}
+
+quadrilateral.register( 'QuadrilateralKeyboardHelpContent', QuadrilateralKeyboardHelpContent );
+export default QuadrilateralKeyboardHelpContent;