Install course format 'testheaders' from attachment. It is basically the copy of topics format but with displaying test course headers/footers Create one course in 'topics' (or any other existing) format and one in 'testheaders' format Open 4 tabs - the course view page, and any page with 'report' layout inside the course, for each of those courses In 5th tab keep changing the theme for the site and refresh the previous 4 tabs, make sure that page layout looks ok, html is not broken for existing format and headers and footers appear in place in testheaders format.(Test the themes listed in description)