LEVITTOWN - Officials at Island Tree High School have announced that seniors will wear just one color at graduation. 

Until now, girls wore white robes and boys wore red robes. All will now wear red at the ceremony. 

Students say they've only been told the change is about unity and acceptance. 

Some believe the move is being done to address concerns from trans-gender kids.

Island Trees officials are not saying exactly why they've made the change.