XCF = charactertest.xcf character-dress.xcf \
      citytest.xcf grasstest.xcf roomtest.xcf floortest.xcf walltest.xcf

EXTRA_DIST = $(XCF)

all: $(XCF:%.xcf=%.png)

%.png: %.xcf
	xcf2png -CA $^ -o $@ || convert -background none -flatten $^ $@

clean:
	rm -f $(XCF:%.xcf=%.png)