way to wordpress 4.9: a new themes experience in the customizer

WordPress 4.9 has introduced new themes experience in the customizer with which you can discover, install and preview themes in the in new way.   By bringing theme browsing framework into the interface, The new flow integrates the management into the customization experience.   The team is looking forward to work with the theme review and Meta team to evaluate the process of finding theme.   The main goal is to introduce improved and unified theme browsing experience to WordPress org, the customizer, and wp-admin, complete with new tags and other taxonomies.   The customize panel is responsible for UI layout, installing themes, loading theme previews, updating installed themes from WordPress org and deleting installed themes ..   The custom themes panel object joins WP Customize Widget Panel and WP Customize Menus Panel rather than as generic containers for sections.   By building on functionality introduced in, Hundreds of theme controls are created and deleted leveraging API's ability to scale WordPress 4.3 for the interface of the menu..   There are two types of WP Customize Themes Section those that load all the themes at once and search theme locally, and those that search and filter themes remotely, replacing every theme control object each time search or changes. This distinction is managed with the filter type parameter..   When this is set to local, all the themes are assumed to be loaded from Ajax and subsequent searching filtering is applied to the collection of themes within the section.   With new themes experience in the customizer, to test it in the 4.9 betas and share feedbacks or bugs that you find on WordPressTrac.  ..   Read more