Editor Type is a setting item in Customization.
The emulsion theme allows you to choose an editor based on this setting.
The image on the left is a screenshot of the settings screen.
Experimental mode will be abolished in ver2.1.6
If you select this item, the following menu will be displayed in the admin bar.
You can use this menu to view your current site with a new theme, such as viewing with a Full Site theme that started with WordPress 5.8, or turning it off with FSE-OFF and viewing it in a traditional classic editor. You can try it out, or make changes to the CSS to make it look the same.
full site Editing theme
View themes using the full site editor, full site theme, which started with WordPress 5.8
In WordPress 5.9.3, the squid message is displayed. If you need a sidebar, use the FSE Transitional Theme setting
FSE Transitional theme
The full site editor is enabled, but the full site editor is embedded in the main content of the theme.
You can use sidebar widgets and footer widgets like traditional themes.
Display with the traditional stable, classic theme
Header Template , Footer Template
Theme Default settings also allow you to use new templates for header and footer templates.