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It’s easy to get lost while trying to get around the Site Editor unless you are working day and night inside the tool. The navigation is jumpy and confusing, especially when going from template browsing to template editing to modifying individual blocks. A large PR is in progress for redesigning this UI with the introduction of a “browse mode” that would make the experience feel more like a design tool.
Gutenberg lead engineer Riad Benguella opened the PR as a continuation of the ongoing work on this project, which has its roots in ideas and explorations that have been fermenting since 2019. He shared a video that roughly demonstrates the target for the proposed UI changes.
It essentially introduces a “navigable frame” where users can select from a menu of features on the left. More detailed efforts on improving the animations and placement of the menu items is happening simultaneously within the ticket.