Click the settings icon in the top menu bar.
Click 'Settings' in the drop-down menu.
In the navigation menu on the left, click 'Custom Course Theme'.
On the 'Customise your course theme' page you can upload a logo, change background and button colour, as well as toggle on or off the minimum time requirement on each slide of course material.
When you are finished customising the look and feel of your courses, click 'Save'.