Hi Alexander,
Hope you are well!
The arrow color can be changed using CSS coding within the registration summary. This is something that our web design team can assist you with, however, the change will be chargeable.
You can also refer to the following article for your reference :
Can I add coding to my website, registration, and emails? == LINK : : https://support.cvent.com/s/communityarticle/Can-I-add-HTML-CSS-or-JavaScript-to-my-website-and-registration?sfdcIFrameOrigin=null
I hope this helps. Please let us know if you have any further questions.
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Raashi Semwal Khati
Senior Quality Analyst
Cvent
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