<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/136267>136267</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Modernize Doxygen CSS
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            documentation,
            website
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          cor3ntin
      </td>
    </tr>
</table>

<pre>
    I was made aware of the existence of [Doxygen Awesome](https://jothepro.github.io/doxygen-awesome-css/), that is a better-looking/more-modern theme for Doxygen.

It is deployed on large projects just as OpenCV https://docs.opencv.org/5.x/dc/d84/group__core__basic.html and it looks more readable than LLVM's documentation
https://clang.llvm.org/doxygen/classclang_1_1Sema.html


Given the installation only seem to require installing a few files, and the license is MIT, it might be worth investigating whether we use it for our Doxygen documentation.
</pre>
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