Patches the gtkrc file of the Quartz theme while making the MacOS bundle

Makefile.am

@@ -229,6 +229,7 @@ bundle:
 	> $(BUNDLEDIR)/Contents/Resources/etc/pango/pangorc
 	cp -f $(BUNDLEDIR)/Contents/Resources/etc/pango/pango.modules $(BUNDLEDIR)/Contents/Resources/etc/pango/pango.modules.orig
 	sed -e 's:@executable_path.*/::g' $(BUNDLEDIR)/Contents/Resources/etc/pango/pango.modules.orig  > $(BUNDLEDIR)/Contents/Resources/etc/pango/pango.modules
+	patch -R ${BUNDLEDIR}/Contents/Resources/share/themes/Quartz/gtk-2.0/gtkrc ${srcdir}/build/macos/quartz-theme-gtkrc.patch
 	cd $(BUNDLEDIR)/.. && rm -f $(MACAPPZIP) && zip -r $(MACAPPZIP) $(MACAPPNAME) && cd -
 	cd $(BUNDLEDIR)/.. && rm -f $(MAXAPPDMG) && hdiutil create $(MACAPPDMG) -srcfolder $(MACAPPNAME) -ov && cd -
 

build/macos/quartz-theme-gtkrc.patch

+85c85
+<         buttontype = "textured"
+---
+>         buttontype = "aqua"