fonts-config/11-base-rendering.conf

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
	<!-- hinting -->
	<match target="font">
                <!-- hinting is on unconditionally, but that -->
                <!-- can be controlled via hintstyle (hintnone) -->
		<edit name="hinting" mode="assign">
			<bool>true</bool>
		</edit>
	</match>

        <!-- hint type: autohinter or BCI -->
	<match target="font">
		<edit name="autohint" mode="assign">
			<bool>true</bool>
		</edit>
	</match>
	<match target="font">
                <test name="font_type">
                        <string>TT Instructed Font</string>
                </test>
		<edit name="autohint" mode="assign">
			<bool>false</bool>
		</edit>
	</match>
	<match target="font">
                <test name="font_type">
                        <string>NON TT Instructed Font</string>
                </test>
		<edit name="autohint" mode="assign">
			<bool>true</bool>
		</edit>
	</match>
	<match target="font">
		<test name="fontformat">
			<string>CFF</string>
		</test>
		<edit name="autohint" mode="assign">
			<bool>false</bool>
		</edit>
	</match>
	<match target="font">
                <test name="force_autohint">
                        <bool>true</bool>
                </test>
		<edit name="autohint" mode="assign">
			<bool>true</bool>
		</edit>
	</match>

	<!-- hint style -->
	<match target="font">
		<edit name="hintstyle">
			<const>hintslight</const>
		</edit>
	</match>
	<match target="font">
		<test name="autohint">
			<bool>false</bool>
		</test>
		<test name="fontformat" compare="not_eq">
			<string>CFF</string>
		</test>
		<edit name="hintstyle">
			<const>hintfull</const>
		</edit>
	</match>
	<match target="font">
		<test name="force_hintstyle">
			<string>hintnone</string>
		</test>
		<edit name="hintstyle">
			<const>hintnone</const>
		</edit>
	</match>
	<match target="font">
		<test name="force_hintstyle">
			<string>hintslight</string>
		</test>
		<edit name="hintstyle">
			<const>hintslight</const>
		</edit>
	</match>
	<match target="font">
		<test name="force_hintstyle">
			<string>hintmedium</string>
		</test>
		<edit name="hintstyle">
			<const>hintmedium</const>
		</edit>
	</match>
	<match target="font">
		<test name="force_hintstyle">
			<string>hintfull</string>
		</test>
		<edit name="hintstyle">
			<const>hintfull</const>
		</edit>
	</match>

        <!-- font smooth or don't font smooth -->
	<match target="font">
                <!-- this test should not be needed, 
                     as antialiasing is done only for outlines,
                     but workarounds Qt5 issue, see bug 866705 -->
		<test name="outline">
			<bool>true</bool>
		</test>
		<edit name="antialias" mode="assign">
			<bool>true</bool>
		</edit>
	</match>
	<match target="font">
                <test name="force_bw">
                        <bool>true</bool>
                </test>
		<edit name="antialias" mode="assign">
			<bool>false</bool>
		</edit>
		<edit name="hintstyle" mode="assign">
			<const>hintfull</const>
		</edit>
                <edit name="embeddedbitmap" mode="assign">
			<bool>true</bool>
		</edit>
	</match>
</fontconfig>