On signed-in pages, page titles are 32px. Section titles are 24px and bold on every page; they were small uppercase labels on many pages and 20px on settings pages. Row titles are 16px, including ones that were 24px, such as Services, Staff and Booking page on Appointments. Headings no longer have a line under them.
On Appointments, each service on the Services page has its own section, titled with the service's name. Add a service is at the top of the page.