You can add logos and your brand colours to online booking too in settings > online booking > booking set up and this can then be used on your Savvy website, embedded or as a button on your existing website, or added as a link to your Facebook page.
If you go to settings > web > customer portal, you can set your brand colours for that too.
Savvy branding gives a professional look and feel to all aspects of your business and your clients will be super impressed!