From 8ac2516e21f5f8981e74449f24253fa41943559c Mon Sep 17 00:00:00 2001
From: Pieter Vander Vennet <pietervdvn@posteo.net>
Date: Fri, 23 Dec 2022 16:21:38 +0100
Subject: [PATCH] Make 'preferredBackground' optional for precise input in
 presets

---
 Models/ThemeConfig/Json/LayerConfigJson.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Models/ThemeConfig/Json/LayerConfigJson.ts b/Models/ThemeConfig/Json/LayerConfigJson.ts
index 36dc8ea3d..e5e177221 100644
--- a/Models/ThemeConfig/Json/LayerConfigJson.ts
+++ b/Models/ThemeConfig/Json/LayerConfigJson.ts
@@ -260,7 +260,7 @@ export interface LayerConfigJson {
                   /**
                    * The type of background picture
                    */
-                  preferredBackground:
+                  preferredBackground?:
                       | "osmbasedmap"
                       | "photo"
                       | "historicphoto"