Cài đặt font toàn cục CachyOS - Khắc phục font xấu không đồng nhất trong một số ứng dụng

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nano ~/.config/fontconfig/fonts.conf

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<?xml version='1.0'?>
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<!DOCTYPE fontconfig SYSTEM 'urn:fontconfig:fonts.dtd'>
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<fontconfig>
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  <!-- Artificial oblique for fonts without an italic or oblique version -->
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  <match target="font">
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    <!-- check to see if the font is roman -->
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    <test name="slant">
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      <const>roman</const>
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    </test>
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    <!-- check to see if the pattern requested non-roman -->
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    <test compare="not_eq" name="slant" target="pattern">
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      <const>roman</const>
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    </test>
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    <!-- multiply the matrix to slant the font -->
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    <edit mode="assign" name="matrix">
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      <times>
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        <name>matrix</name>
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        <matrix>
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          <double>1</double>
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          <double>0.2</double>
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          <double>0</double>
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          <double>1</double>
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        </matrix>
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      </times>
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    </edit>
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    <!-- pretend the font is oblique now -->
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    <edit mode="assign" name="slant">
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      <const>oblique</const>
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    </edit>
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    <!-- and disable embedded bitmaps for artificial oblique -->
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    <edit mode="assign" name="embeddedbitmap">
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      <bool>false</bool>
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    </edit>
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  </match>
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  <!-- Synthetic emboldening for fonts that do not have bold face available -->
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  <match target="font">
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    <!-- check to see if the weight in the font is less than medium which possibly need emboldening -->
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    <test compare="less_eq" name="weight">
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      <const>medium</const>
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    </test>
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    <!-- check to see if the pattern requests bold -->
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    <test compare="more_eq" name="weight" target="pattern">
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      <const>bold</const>
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    </test>
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    <!-- set the embolden flag needed for applications using cairo, e.g. gucharmap, gedit, ... -->
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    <edit mode="assign" name="embolden">
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      <bool>true</bool>
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    </edit>
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    <!-- set weight to bold needed for applications using Xft directly, e.g. Firefox, ... -->
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    <edit mode="assign" name="weight">
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      <const>bold</const>
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    </edit>
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  </match>
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  <!-- Thêm phần này: Cài đặt ưu tiên họ font -->
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  <alias>
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    <family>sans-serif</family>
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    <prefer>
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      <family>Noto Sans CJK SC</family>
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    </prefer>
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  </alias>
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  <alias>
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    <family>serif</family>
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    <prefer>
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      <family>Noto Serif CJK SC</family>
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    </prefer>
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  </alias>
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  <alias>
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    <family>monospace</family>
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    <prefer>
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      <family>Noto Sans Mono CJK SC</family>
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    </prefer>
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  </alias>
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</fontconfig>

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fc-cache -fv