diff --git a/.local/bin/light b/.local/bin/light
new file mode 100755
index 0000000..b017675
--- /dev/null
+++ b/.local/bin/light
@@ -0,0 +1,13 @@
+#! /bin/sh
+case "$1" in
+	on)
+		echo 'VIM_COLORSCHEME=light' | tee "$HOME/.config/environment.d/light.conf"
+	;;
+	off)
+		echo 'VIM_COLORSCHEME=dark' | tee "$HOME/.config/environment.d/light.conf"
+	;;
+	*)
+		echo "Usage: $(basename $0) on|off" >&2
+		exit 1
+	;;
+esac