doc: Export figure with opaque background

diff --git a/doc/Makefile b/doc/Makefile
index d4c41842d45f145c8192b885433a268ecbcc6755..a011f6de0527cbd8c8fe6c13500025fa9662746d 100644 (file)
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -8,7 +8,7 @@ clean:
        rm $(TARGETS)
 
 %.png: %.svg
-       inkscape --export-area-drawing --export-png=$@ $<
+       inkscape --export-area-drawing --export-png=$@ --export-background-opacity=1.0 $<
 
 %.ps: %.svg
        inkscape --export-ps=$@ $<