lupan-set-theme: toggle st theme (note: needs st patched to handle USR1)

xsession/bin/lupan-set-theme

@@ -19,6 +19,16 @@ else
     exit 1
 fi
 
+if [ -f ~/.Xresources ]; then
+	if [ "$THEME" = dark ]; then
+		sed -i 's/^#undef THEME_DARK/#define THEME_DARK/' ~/.Xresources
+	elif [ "$THEME" = light ]; then
+		sed -i 's/^#define THEME_DARK/#undef THEME_DARK/' ~/.Xresources
+	fi
+	xrdb -merge ~/.Xresources
+	killall -USR1 st
+fi
+
 # Alacritty
 if [ -f ~/.config/alacritty/alacritty.yml ]; then
     sed -i "s/^colors: [*].*/colors: *$THEME/" ~/.config/alacritty/alacritty.yml