Noise and kisses and Blue and Yellow by the Used are lighter songs than the other stuff on that album... And seeing as in those two songs there isnt much screaming and its not really heavy or screamo type stuff (In my opinion) I wouldnt class those two as screamo... But with Finch I understand a bit more I guess...
But meh, thats just my attempt at understanding genres, so dont take any notice of what I say
