Many communities will use the out of the box Title Bar as their header, and these sites do not have a need for an additional header. It is an optional component and may not be necessary for your community.
However, if you would like to use a custom header and footer to match your mainsite, you can add the same HTML and CSS that you use on your mainsite header and footer to your community, or get creative and have a developer create something unique from scratch.
Copying over from legacy themes
You can find docs on updating your foundation header and footer to match your legacy theme here:
Moving my theme over to the new theming system - Vanilla Success
Updating Header and Footer Styles
If you do not yet have a foundation theme, see these docs to get started: https://success.vanillaforums.com/kb/articles/279-theme-editor-overview
Once you are in the theme editor, you can find the header, footer and CSS tabs at the top:
By default, this is blank. You may optionally add HTML code to this pocket. If CSS is needed to style it, add it to the CSS tab (see more below)
By default, the footer has code for our basic Footer:
You can update the wording on the left by editing this (underlined in red) part of the footer code:
If you are unfamiliar with HTML code, you may need to contact a technical resource in your organization for assistance.
The CSS tab ONLY applies to header and footer assets.
If you are unfamiliar with CSS code, you may need to contact a technical resource in your organization for assistance.
By default, the code in the CSS tab styles the out of the box footer, but you can add code that pertains to the header as well.
Setting a Custom Font
You can read more about this here: