From d4887f4940596a2aa57eae3e2d30ee8f1571e70a Mon Sep 17 00:00:00 2001
From: NishiOwO <nishi@nishi.boats>
Date: Sun, 7 Dec 2025 05:22:52 +0900
Subject: [PATCH] allow null value

---
 src/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core.c b/src/core.c
index b1be64b..8f11722 100644
--- a/src/core.c
+++ b/src/core.c
@@ -377,7 +377,7 @@ void MwSetText(MwWidget handle, const char* key, const char* value) {
 		shput(handle->text, key, v);
 	}
 	if(handle->prop_event) MwDispatch3(handle, prop_change, key);
-	if(strcmp(key, MwNbackground) == 0) {
+	if(v != NULL && strcmp(key, MwNbackground) == 0) {
 		MwLLColor c = MwParseColor(handle, value);
 		MwLLSetBackground(handle->lowlevel, c);
 		MwLLFreeColor(c);