block-editor

Update #1: After asking from @leymannx I checked how these settings are stored. It turned out that settings are not permanent, they are saved in the browser as localStorage. key: WP_DATA_USER_{id}: value: { “core/nux”:{ “preferences”:{ “areTipsEnabled”:false, “dismissedTips”:{} } }, //”core/edit-post” //… Update #2: Gutenberg tips can be disabled by using dispatch(‘core/nux’).disableTips() (NUX package) and action … Read more

EDIT Sept 2021: An updated version of the answer that uses hooks. This version tracks changes in the editor much better. It also uses import statement instead of importing directly from the wp global. This approach when used with the @wordpress/scripts package will correctly add dependencies for this file when being enqueued. Accessing the wp … Read more

Gutenberg is making use of dashicons. You can find your example icon here, and a cheat sheet of dashicons here.