The Title Block allows you to display a Page or Post’s title. Although you can add this block into your normal Page or Post content, it will be more useful adding it to your theme’s templates using the Full Site Editor.
Once you've added your Block, there are further options available in the Settings Sidebar. You can change the Text and Background colours, and you can also change various Typography settings like Font size, Appearance, Decoration, Line height, Letter case & Letter spacing. You can add a link to the title, which links to that particular page, using the Make title a link switch. If you add a link to your title, you can also force that link to open in a new browser tab using the Open in new tab switch.
The various options for this block are located within separate Settings () and Styles () tabs, in the Settings Sidebar.