From bb33b9efb25cf99b985b5d090af5ce36a00e9da9 Mon Sep 17 00:00:00 2001
From: pixelzoom <cmalley@pixelzoom.com>
Date: Wed, 24 Aug 2022 16:10:52 -0600
Subject: [PATCH] make levelSelectionButtonOptions optional,
 https://github.com/phetsims/vegas/issues/108

---
 js/LevelSelectionButtonGroup.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/LevelSelectionButtonGroup.ts b/js/LevelSelectionButtonGroup.ts
index eea6dd9..0a28be0 100644
--- a/js/LevelSelectionButtonGroup.ts
+++ b/js/LevelSelectionButtonGroup.ts
@@ -47,7 +47,7 @@ type SelfOptions = {
 
   // Options for all LevelSelectionButton instances in the group.
   // These can be overridden for specific button(s) via LevelSelectionButtonGroupItem.options.
-  levelSelectionButtonOptions: StrictOmit<LevelSelectionButtonOptions, 'tandem'>;
+  levelSelectionButtonOptions?: StrictOmit<LevelSelectionButtonOptions, 'tandem'>;
 
   // Options for the default layout, which is a FlowBox. Ignored if createLayoutNode is provided.
   flowBoxOptions?: StrictOmit<FlowBoxOptions, 'children'>;
@@ -78,7 +78,7 @@ export default class LevelSelectionButtonGroup extends Node {
     assert && assert( items.length > 0, 'at least one item must be specified' );
 
     const options = optionize<LevelSelectionButtonGroupOptions,
-      StrictOmit<SelfOptions, 'createLayoutNode' | 'gameLevels'>, NodeOptions>()( {
+      StrictOmit<SelfOptions, 'createLayoutNode' | 'gameLevels' | 'levelSelectionButtonOptions'>, NodeOptions>()( {
 
       // The default layout is a single row of buttons.
       flowBoxOptions: {