Go to Admin → Settings → Identity for logo, company name and portal name. Under Colors, choose a primary color (buttons, accents, links) and an accent color (hovers, highlights, secondary UI).
The colors apply across the entire portal — including the public booking page, emails, and the `/changelog` page (orbs, badges and filter pills inherit your tenant colors). Changes are visible immediately after saving; sometimes you need to refresh your tab to clear cached styles.