diff --git a/LEGO1/lego/legoomni/src/common/legobackgroundcolor.cpp b/LEGO1/lego/legoomni/src/common/legobackgroundcolor.cpp
index 07a8e3ca..5cf43c65 100644
--- a/LEGO1/lego/legoomni/src/common/legobackgroundcolor.cpp
+++ b/LEGO1/lego/legoomni/src/common/legobackgroundcolor.cpp
@@ -67,16 +67,50 @@ void LegoBackgroundColor::SetValue(const char* p_colorString)
 	delete[] colorStringCopy;
 }
 
-// STUB: LEGO1 0x1003c230
-void LegoBackgroundColor::ToggleDayNight(MxBool)
+// FUNCTION: LEGO1 0x1003c230
+void LegoBackgroundColor::ToggleDayNight(MxBool p_sun)
 {
-	// TODO
+	char buffer[30];
+
+	if (p_sun) {
+		m_s += 0.1;
+		if (m_s > 0.9) {
+			m_s = 1.0;
+		}
+	}
+	else {
+		m_s -= 0.1;
+		if (m_s < 0.1) {
+			m_s = 0.1;
+		}
+	}
+
+	sprintf(buffer, "set %d %d %d", (MxU32) (m_h * 100.0f), (MxU32) (m_s * 100.0f), (MxU32) (m_v * 100.0f));
+	m_value = buffer;
+
+	float convertedR, convertedG, convertedB;
+	ConvertHSVToRGB(m_h, m_s, m_v, &convertedR, &convertedG, &convertedB);
+	VideoManager()->SetSkyColor(convertedR, convertedG, convertedB);
+	SetLights(convertedR, convertedG, convertedB);
 }
 
-// STUB: LEGO1 0x1003c330
+// FUNCTION: LEGO1 0x1003c330
 void LegoBackgroundColor::ToggleSkyColor()
 {
-	// TODO
+	char buffer[30];
+
+	m_h += 0.05;
+	if (m_h > 1.0) {
+		m_h -= 1.0;
+	}
+
+	sprintf(buffer, "set %d %d %d", (MxU32) (m_h * 100.0f), (MxU32) (m_s * 100.0f), (MxU32) (m_v * 100.0f));
+	m_value = buffer;
+
+	float convertedR, convertedG, convertedB;
+	ConvertHSVToRGB(m_h, m_s, m_v, &convertedR, &convertedG, &convertedB);
+	VideoManager()->SetSkyColor(convertedR, convertedG, convertedB);
+	SetLights(convertedR, convertedG, convertedB);
 }
 
 // STUB: LEGO1 0x1003c400