There are options for 2 banners to be loaded up for display in various places.
Banner Logo
The Banner Logo appears on the top of the Registration Form and at the top of the confirmation email. For the best result use a landscape orientated image. A .png with a transparent background is recommended.
Icon Logo
The Icon Logo is used for Social Media and on the Event Map. For the best results use a square image. A .png with a transparent background is recommended.
Banners are uploaded in the dashboard:
Setup > Event > Names & Logos