Feature: #92628 - Add Alt-Text To Login Logo

See forge#92628

Description

The configuration of the extension "backend" has now the possibility to provide an alt-text for a custom login logo.

In the module "Admin tools > Settings" go to card "Extension Configuration" and open the dialog. Select extension "backend" and fill in the field "Logo Alt-Text" on the "Login" tab. You can also set $GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['backend']['loginLogoAlt'].

Impact

Setting the alt-text enhances the accessibility of the login page.