Hi everyone! i am working in a project which is in TYPO3 7.6dev branch and i added some custom doktype icons with \TYPO3\CMS\Backend\Sprite\SpriteManager::addTcaTypeIcon function. On TYPO3 7.5 those were fine, but when i upgraded source to TYPO3 7.6, those got broken. removed cache didnt work. need help!!!