For each of the bar types, you can adjust the basic appearance of the bar. The below image shows you the basic appearance settings:
Your first option is to choose your color scheme. You have 6 colors to choose from, along with black and white, giving you enough flexibility to choose a color that suits your needs. For example, you can choose yellow or orange for a Warning, while purple or red could help make your CTA stand out.
The Transition determines how the bar appears, when opening or closing.