click the intro you want to view. click the circles to listen to some music you could use for your intro. when you find an intro that you like and a track as well, click see inside. delete all the other intros you do not want, along with the other tracks. leave only one intro and one track. change the code and delete some code, following the instructions. then go to the costumes and add your icon wherever it says your icon, and change the colors if you want to. once you are done, go to the track you want, click the sounds button(next to the costumes) and drag the music to the backpack. go to the intro and drag that into the backpack too. when you use your intro, get the music out of the backpack and put it in the intro sprite. enjoy!
@twonerds for inspiration me for all code and art