diff --git a/make-includes/standard_rules.make b/make-includes/standard_rules.make
index 1aacc17..7875a5c 100755
--- a/make-includes/standard_rules.make
+++ b/make-includes/standard_rules.make
@@ -187,6 +187,9 @@
 
 %-web-zoom.png: %.svg
 	$(INKSCAPE) --file=$< --without-gui --export-area-drawing --export-background-opacity=1.0 --export-dpi=144 --export-png=$(IMGDIR)/$@
+
+%-transparent.png: %.svg
+	$(INKSCAPE) --file=$< --without-gui --export-area-drawing --export-background-opacity=0 --export-dpi=96 --export-png=$(IMGDIR)/$@
 #
 # PNG from PNG (change the name).
 # These appear to need to be separate rules. If both variants need to be