From 6c0f5eee55bb83212a3f99668b79fc8e4e7d52cc Mon Sep 17 00:00:00 2001
From: SoftFever <softfeverever@gmail.com>
Date: Tue, 18 Aug 2026 22:17:59 +0800
Subject: [PATCH] Clarify icon rescaling condition in Button::Rescale method

---
 src/slic3r/GUI/Widgets/Button.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/Widgets/Button.cpp b/src/slic3r/GUI/Widgets/Button.cpp
index 1a8cbefbce..94be6ce301 100644
--- a/src/slic3r/GUI/Widgets/Button.cpp
+++ b/src/slic3r/GUI/Widgets/Button.cpp
@@ -254,7 +254,8 @@ void Button::SetStyle(const ButtonStyle style, const ButtonType type)
 
 void Button::Rescale()
 {
-    if (this->active_icon.bmp().IsOk())
+    // Only a named icon can be re-rasterized; one set from a wxBitmap has no source file,
+    if (!this->active_icon.name().empty())
         this->active_icon.msw_rescale();
 
     messureSize();