Breaking: #79259 - EXT:t3skin removed¶
See Issue #79259
The system extension
t3skin has been removed, as all functionality has been migrated into
other system extensions.
All ExtJS-related images and css files have been moved to EXT:core.
All other images have been unused for a while now, and have been deleted from the TYPO3 core.
Any direct references to EXT:t3skin now lead to missing styling or image(s).
All installations that use CSS files or images from EXT:t3skin.
Do not use ExtJS styling or images anymore, as ExtJS will be removed from the core.
Other direct references to image(s) in EXT:t3skin should be migrated to have the image(s) in custom extension.