This header is more suitable for personal websites: it has no contact data in the header, so one can use (left and/or right) upper menu.
To use personal header, write header=personal in wiki.conf file.
For business websites we recommend using business header by setting
Assign your favorite theme's number to theme variable. For example, if you want to use theme number 1 (dark-green contrast), write theme=1 in wiki.conf file.
Choosing one of few available themes and headers and footers is always a compromise.
If you are familiar with CSS, you can switch to custom theme by writing theme=custom in wiki.conf file, and edit custom.css file to polish one of freely available design themes or even create your unique design.
Similarly if you know some HTML syntax, set header=custom and/or footer=custom, and edit header.html and/or footer.html
Design theme for a website is like a dress for a human.
Different design themes may affect environments: