2017年的fontconfig，使用思源系列字体

fonts.conf

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
    <!-- 关闭内嵌点阵字体 -->
    <match target="font">
        <edit name="embeddedbitmap" mode="assign">
            <bool>false</bool>
        </edit>
    </match>
    <!-- 字节码解释器(BCI)，需要自带良好微调指令的字体 -->
    <match target="font">
        <edit name="hinting" mode="assign">
            <bool>true</bool>
        </edit>
    </match>
    <match target="font">
        <edit name="hintstyle" mode="assign">
            <const>hintfull</const>
        </edit>
    </match>
    <!-- 取消粗体字的自动微调功能 -->
    <match target="font">
        <test name="weight" compare="more">
            <const>medium</const>
        </test>
        <edit name="autohint" mode="assign">
            <bool>false</bool>
        </edit>
    </match>
    <!-- 设置默认字体 -->
    <match>
        <test qual="any" name="family">
            <string>serif</string>
        </test>
        <edit binding="strong" name="family" mode="prepend">
            <string>Noto Serif CJK SC</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>sans-serif</string>
        </test>
        <edit binding="strong" name="family" mode="prepend">
            <string>Noto Sans CJK SC</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>monospace</string>
        </test>
        <edit binding="strong" name="family" mode="prepend">
            <string>Noto Sans Mono CJK SC</string>
        </edit>
    </match>
    <!--Windows & Linux Chinese fonts. -->
    <!--把所有常见的中文字体映射到思源黑体和思源宋体，这样当这些字体未安装时会使用思源黑体和思源宋体.
    解决特定程序指定使用某字体，并且在字体不存在情况下不会使用fallback字体导致中文显示不正常的情况. -->
    <match target="pattern">
        <test qual="any" name="family">
            <string>WenQuanYi Zen Hei</string>
        </test>
        <edit binding="same" name="family" mode="assign">
            <string>Noto Sans CJK SC</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>WenQuanYi Micro Hei</string>
        </test>
        <edit binding="same" name="family" mode="assign">
            <string>Noto Sans CJK SC</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>WenQuanYi Micro Hei Light</string>
        </test>
        <edit binding="same" name="family" mode="assign">
            <string>Noto Sans CJK SC</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>Microsoft YaHei</string>
        </test>
        <edit binding="same" name="family" mode="assign">
            <string>Noto Sans CJK SC</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>SimHei</string>
        </test>
        <edit binding="same" name="family" mode="assign">
            <string>Noto Sans CJK SC</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>SimSun</string>
        </test>
        <edit binding="same" name="family" mode="assign">
            <string>Noto Serif CJK SC</string>
        </edit>
    </match>
    <match target="pattern">
        <test qual="any" name="family">
            <string>SimSun-18030</string>
        </test>
        <edit binding="same" name="family" mode="assign">
            <string>Noto Serif CJK SC</string>
        </edit>
    </match>
    <dir>~/.fonts</dir>
</fontconfig>