[Sphinx 7.2.6] Build error - UndefinedError("'logo' is undefined")

[s3v-]

Hi,
I'm unable to build docs with Sphinx 7.2.6.

$ sphinx-build python-pytest-trio-0.8.0/docs/source/ dummy
Running Sphinx v7.2.6
making output directory... done
building [mo]: targets for 0 po files that are out of date
writing output... 
building [html]: targets for 4 source files that are out of date
updating environment: [new config] 4 added, 0 changed, 0 removed
reading sources... [100%] reference
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
preparing documents... done
copying assets... copying static files... done
copying extra files... done
done
/build/python-pytest-trio-0.8.0/docs/source/history.rst:67: WARNING: py:exc reference target not found: trio.Cancelled

Theme error:
An error happened in rendering the page history.
Reason: UndefinedError("'logo' is undefined")

The problem is that "layout.html" relies on "logo" variable:

pytest-trio/docs/source/_templates/layout.html

Line 18 in e930e6f

<img class="logo" src="{{ pathto('_static/' + logo, 1) }}" />

but this variable was removed since Sphinx 6 and replaced by "logo_url".
sphinx-doc/sphinx#11062

Kind Regards