Style past events

yes, you can try to use custom CSS styling with CSS class or id name on your formatting options at events > settings > formatting > events then use conditional placeholders {is_past}content{/is_past} and {is_future}content{/is_future} to switch the class name

https://wp-events-plugin.com/documentation/conditional-placeholders/

that worked, thank you! Also can you help me with date range search, it’s not working, my results are all events from the future, also the same results I get if I search a date from the past or keyword

The issue has been resolved, thank you!