<fontconfig>

        <alias>

          <family>sans-serif</family>

            <prefer>

              <family>Roboto</family>

            </prefer>

        </alias>

        <alias>

          <family>Roboto</family>

            <default>

              <family>sans-serif</family>

            </default>

        </alias>

	<match target="scan">

		<test name="style">

			<string>Thin</string>

		</test>

		<edit name="weight">

			<const>thin</const>

		</edit>

	</match>

	<match target="scan">

		<test name="style">

			<string>Thin Italic</string>

		</test>

		<edit name="weight">

			<const>thin</const>

		</edit>

	</match>

	<match target="scan">

		<test name="style">

			<string>Black</string>

		</test>

		<edit name="weight">

			<const>black</const>

		</edit>

	</match>

	<match target="scan">

		<test name="style">

			<string>Black Italic</string>

		</test>

		<edit name="weight">

			<const>black</const>

		</edit>

	</match>

</fontconfig>