diff --git a/Default.preset b/Default.preset
index b2fa6ec..9a8255e 100644
--- a/Default.preset
+++ b/Default.preset
@@ -132,6 +132,7 @@ DisableShortcutInName           # EnableShortcutInName
 SetVisualFXPerformance          # SetVisualFXAppearance
 # EnableTitleBarColor           # DisableTitleBarColor
 # SetAppsDarkMode               # SetAppsLightMode
+# SetSystemLightMode            # SetSystemDarkMode
 # AddENKeyboard                 # RemoveENKeyboard
 # EnableNumlock                 # DisableNumlock
 # DisableEnhPointerPrecision    # EnableEnhPointerPrecision
diff --git a/Win10.psm1 b/Win10.psm1
index 5271e1b..2d81287 100644
--- a/Win10.psm1
+++ b/Win10.psm1
@@ -2009,6 +2009,18 @@ Function SetAppsLightMode {
 	Set-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize" -Name "AppsUseLightTheme" -Type DWord -Value 1
 }
 
+# Set Light Mode for System - Applicable since 1903
+Function SetSystemLightMode {
+	Write-Output "Setting Light Mode for System..."
+	Set-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize" -Name "SystemUsesLightTheme" -Type DWord -Value 1
+}
+
+# Set Dark Mode for System - Applicable since 1903
+Function SetSystemDarkMode {
+	Write-Output "Setting Dark Mode for System..."
+	Set-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize" -Name "SystemUsesLightTheme" -Type DWord -Value 0
+}
+
 # Add secondary en-US keyboard
 Function AddENKeyboard {
 	Write-Output "Adding secondary en-US keyboard..."