There isn't, and for very good reason.
Joycards present as a wall of videos.
The recipient can click on any video then sit back and watch them auto play one after the other.
The joy comes from the personal video messages, the community nature of the card and the dopamine hit when seeing a wall of friendly and familiar faces.
Thus, it's super quick to create as there is no editing, no background image selection, no title writing and no background music selection required.