[NiLuJe]

@rpgmaker:

cf. linkfonts/etc/conf.avail/99-tweaks.conf

Of which, following the comments, the only relevant part is actually:

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">

<!--
	Misc tweaks :)
-->
<fontconfig>
	<!-- Make Crimson Text 10% bigger -->
	<match target="font">
		<test name="family" compare="eq">
			<string>Crimson Text</string>
		</test>
		<edit name="matrix" mode="assign">
			<times>
				<name>matrix</name>
				<matrix>
					<double>1.1</double>
					<double>0.0</double>
					<double>0.0</double>
					<double>1.1</double>
				</matrix>
			</times>
		</edit>
	</match>
</fontconfig>

On a sidenote, KUAL is a required dependency (of basically everything) with FW >= 5.5.x, since you need it to install packages.