1) Click on your profile icon or initials
2) Open the Admin Site
3) Go to General Settings
4) Select "Branding" under General Settings
5) To upload a logo, click on "Upload New" under Logo
6) And to upload an icon logo, click on "Upload New" under Icon Logo
7) Once your logo is reflected on the page, click "Save". Wait for the color green pop-up at the bottom of your screen to confirm that your logo was successfully updated in the Branding section.