We've replaced the Customization tab with a new Design tab, now located in the block editing section.

All customization options have been moved to the left side, while the block on the right lets you instantly preview your challenge design and see real-time updates for each modification.

Important note: Any design change made in the Design tab for a specific block will affect all other blocks within the challenge, including questions, results, and the lead form.

Don't forget to press the Publish button to apply your design changes to the production instance.