diff --git a/BinxelviewForm.cs b/BinxelviewForm.cs
index 419a944..d071865 100644
--- a/BinxelviewForm.cs
+++ b/BinxelviewForm.cs
@@ -334,6 +334,7 @@ void defaultOption()
             zoom = 2;
             hidegrid = false;
             background = SystemColors.Control;
+            background_raw = background.ToArgb();
             palette_mode = PaletteMode.PALETTE_RGB;
             decimal_position = false;
             snap_scroll = true;