linux-kernel - Re: Adding warning icon to warning admonitions?

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Date: Fri, 5 Jan 2024 19:12:10 +0100
From: Vegard Nossum <vegard.nossum@...cle.com>
To: Jonathan Corbet <corbet@....net>, Bagas Sanjaya <bagasdotme@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Documentation <linux-doc@...r.kernel.org>
Cc: Randy Dunlap <rdunlap@...radead.org>
Subject: Re: Adding warning icon to warning admonitions?


On 05/01/2024 15:59, Jonathan Corbet wrote:
> Bagas Sanjaya <bagasdotme@...il.com> writes:
> 
>> For the icon itself, the approach is to use Font Awesome [2] (many other doc
>> sites that uses Sphinx also do that due to site theme they use but Alabaster
>> theme don't use the icon, hence this question). I personally prefer regular
>> icon variant (like in TT), but alas it is in non-free PRO plan (and only
>> solid variant is free and that is what Sphinx themes using).
>>
>> Does adding warning icon like above idea make sense for the kernel docs? And
>> does it require non-trivial (complex) changes to Alabaster theme?
> 
> It can probably be done with a bit of CSS tweaking.  I don't really like
> the idea of requiring the installation of another font to build the
> docs, though, and Font Awesome looks like it could bring in licensing
> issues of its own - that's not clear from the site at all.

You could use the unicode symbol as a replacement for the graphic by
adding something like this to custom.css:

div.admonition.warning p.admonition-title::before {
         content: "\26A0";
         font-weight: bold;
         font-size: 120%;
         padding-right: 8px;
         float: left;
}

It doesn't look great to me, but maybe with some additional tweaking it
could (e.g. text-stroke property, sizing, positioning, etc.).


Vegard