diff --git a/apps/lightswitch/widget.js b/apps/lightswitch/widget.js
index 6b573355b..5b542f509 100644
--- a/apps/lightswitch/widget.js
+++ b/apps/lightswitch/widget.js
@@ -57,7 +57,8 @@
         );
       } else {
         // backlight off
-        g.setColor(0);
+        let innerColorWhenOff = g.getBgColor();
+        g.setColor(innerColorWhenOff);
       }
       // draw circle
       g.drawImage(atob("CwuBAB8H8f9/////////f8fwfAA="), this.x + 6, this.y + 6);