Domain was migrated from Plesk 11.0 to PP 11.5 with the "Migration & Transfer Manager". The domain has a site created with Web Presence Builder (WPB) 11.0.
After migration I open the domain in WPB 11.5. On the right page Design with list of design templates is opened.
"Design templates" is new WPB feature that was implemented since version 11.5:
[+] Design templates. Users can change the design of their sites with one mouse click, choosing from more than a dozen design templates. There are design templates generated automatically by Presence Builder and templates manually created by graphic designers.
After upgrade from Plesk 11.0 or migrate a domain with existing site to Plesk 11.5, WPB 11.5 generates and suggests list of suitable design template for the site. This is required procedure of migrating sites to new version - site owner may choose appropriate template for his site.
Since new design template is assigned to the site, it is reconfigured according to it: website elements (banner, footer, sidebars), page layout settings, and colors are replaced. More details about design templates:
If you are concerned that the site will look different in WPB 11.5 after migrating from WPB 11.0 and assigning new design template, please consider restoring the site from snapshot created with WPB 11.0. Refer to this KB article for more detail:
113681 How to back up and restore Web Presence Builder site through GUI