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cms-core/Documentation/Changelog/12.3/Feature-100232-LoadAdditionalStylesheetsInTYPO3Backend.rst

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.. include:: /Includes.rst.txt
.. _feature-100232-1679344020:
===============================================================
Feature: #100232 - Load additional stylesheets in TYPO3 backend
===============================================================
See :issue:`100232`
Description
===========
It is now possible to load additional CSS files for the TYPO3
backend interface via regular :php:`$TYPO3_CONF_VARS` settings in a
:file:`settings.php` file of a project (previously known as :file:`LocalConfiguration.php`)
file or in an extension's :file:`ext_localconf.php`.
Previously this was done via the outdated :php:`$TBE_STYLES`
global array which has been deprecated.
Impact
======
By defining a specific stylesheet, a single CSS file or all CSS files
of a folder, extension authors can now modify the styling via:
.. code-block:: php
:caption: EXT:my_extension/ext_localconf.php
$GLOBALS['TYPO3_CONF_VARS']['BE']['stylesheets'][my_extension]
= 'EXT:myextension/Resources/Public/Css/myfile.css';
$GLOBALS['TYPO3_CONF_VARS']['BE']['stylesheets'][my_extension]
= 'EXT:myextension/Resources/Public/Css/';
in their extension's :file:`ext_localconf.php` file.
Site administrators can handle this in their :php:`settings.php` or :php:`additional.php` file.
.. index:: LocalConfiguration, ext:backend