fix: default classes should be classes not strings
fix: default classes should be classes not strings

Dallinger/Dallinger,berkeley-cocosci/Wallace,jcpeterson/Dallinger,Dallinger/Dallinger,jcpeterson/Dallinger,berkeley-cocosci/Wallace,jcpeterson/Dallinger,Dallinger/Dallinger,berkeley-cocosci/Wallace,suchow/Wallace,suchow/Wallace,Dallinger/Dallinger,Dallinger/Dallinger,jcpeterson/Dallinger,jcpeterson/Dallinger,suchow/Wallace