Heading 1

H1 is used in big headings

Heading 2

H2 is in use for titles of Posts listed on All Posts page

Heading 3

Don’t know that this is in use.

Heading 4

Don’t know that this is in use. Very likely not.

Heading 5

Don’t know that this is in use. Very likely not.

Heading 6

Heading 6 is in use for title on homepage.  Site Title is controlled elsewhere, but is also Parisienne.

Also in use on About page.  For both homepage and About page, I deactivated the regular Page headings, so that H6 could be used for page heading.