Options are split into separate tabs:
See options for other style settings in the theme customizer.
Upload your header logo to appear top left on the header.
Hide site name in header
Check if you want to use a logo without a text title.
Upload a logo to be displayed on the login screen.
Widget border height
Height in pixels to display the coloured border at the top of widgets.
Used as the colour for top border of widgets and buttons around the templates.
Custom CSS Code
Add custom CSS to change styles throughout the intranet. For core changes you should recompile Bootstrap using your preferences and install the resultant .js and .css files.