In the section BFH Color aliases, you find a description how to change colors in your document. E.g the background color of the title-page
Furthermore, the BFH LaTeX developers provides some nice boxes and terminals. So you can highlight some important information in a document or create a self explained tutorials with command line inputs. More information about these modules can be found in the section BFH Modules.
General customization e.g how to replace default headings and footers are listed below.