During July 2025, Stefan Dörig focused on backend development for the greenpeace/planet4-master-theme repository, addressing a runtime bug in the Share Buttons feature. He implemented a robust type check in PHP to ensure the enqueue_share_buttons function gracefully handled non-array confirmations in the $form variable, preventing errors from unexpected data structures. Alongside this targeted fix, Stefan improved code maintainability by adjusting whitespace to comply with PHPCS standards. While the work did not introduce new features, it enhanced the reliability and user experience of the Share Buttons, reducing potential support issues and aligning the codebase with established quality guidelines.