Hi,
Thanks for using our plugins.
We do not have a built in feature to add a class if it is an all day event in the views.
We do have a function:
tribe_event_is_all_day
https://theeventscalendar.com/function/tribe_event_is_all_day/
Using that you could detect if the event is all day and then following our themer’s guide:
https://theeventscalendar.com/knowledgebase/themers-guide/
Add classes to the Events in the different views so you can style them differently.
Let me know if you have any follow up questions.
Thanks