fonts.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<!-- 
~/.fonts.conf file to configure local fonts 
-->
<fontconfig>

  <!--
	  local fonts directory
  -->
  <dir>~/.fonts</dir>

  <!--
      dpi setting
  -->
  <match target="pattern">
    <test name="dpi" mode="assign">
      <double>96</double>
    </test>
  </match>

  <!--
      fonts alias settings
  -->
  <match target="pattern">
    <test name="family">
      <string>宋体</string>
    </test>
    <edit name="family" mode="assign">
      <string>SimSun</string>
    </edit>
  </match>
  <match target="pattern">
    <test name="family">
	  <string>新宋体</string>
    </test>
    <edit name="family" mode="assign">
      <string>NSimSun</string>
    </edit>
  </match>
  <!--
      NSimSun english portion substitution
  -->
  <match target="pattern">
    <test name="family" >
      <string>NSimSun</string>
    </test>
    <edit name="family" mode="prepend" binding="strong">
      <string>Courier New</string>
    </edit>
  </match> 
  <!--
      Substitue `Courier' with `Courier New'
  -->
  <match target="pattern">
    <test name="family">
      <string>Courier</string>
    </test>
    <edit name="family" mode="assign" >
      <string>Courier New</string>
    </edit>
  </match>

  <!--
      The dual-width Asian fonts (spacing=dual) are not rendered correctly,
      apparently FreeType forces all widths to match. Trying to disable the
      width forcing code by setting globaladvance=false alone doesn't  help.
      As a brute force workaround, also set spacing=proportional, i.e. handle
      them as proportional fonts:
  -->
  <match target="font">
    <test name="lang" compare="contains">
      <string>zh</string>
    </test>
    <edit name="spacing" mode="assign">
      <const>proportional</const>
    </edit>
    <edit name="globaladvance" mode="assign">
      <bool>false</bool>
    </edit>
  </match> 

  <!--
      Font size settings:
      set the apposite font size,so it's easy to be read
  -->
  <match target="pattern" >
    <test name="pixelsize" compare="more_eq" >
      <double>8</double>
    </test>
    <test name="pixelsize" compare="less_eq" >
      <double>12</double>
    </test>
    <edit name="pixelsize" mode="assign" >
      <double>12</double>
    </edit>
  </match>
</fontconfig>