Default: Normal display
mp: Forces fullscreen icon to display in small viewports; icon opens the embed a new browser tab when clicked.
mls: No watermark/logo displayed, even if set. Intended for MLS or other environments where branding is prohibited.
clean: Prevents all controls from displaying (including Collections controls). For Pro accounts, this also hides your logo.
clean_logo: Prevents all controls from displaying (including Collections controls), except your logo continues to display.