In the mobile version of the product designer, when opening a panel such as "Add Text" or "Upload Images", the current method of closing the panel using the small horizontal line at the top is not very intuitive. I believe the user experience could be improved by adding a traditional "X" close button in the top-right corner of these panels. This would make it much clearer and easier for customers to close the panels and return to the product designer, especially for users who are not familiar with the current interface. It would be a small change, but one that could significantly improve usability and the overall mobile user experience.