oh i don't know how to put a picture in the background but you go to your profile and click edit channel and when you do that you should just answer the following questions and then click on the things on the sides and to change you background color you go to channel design there you go

yeah sure what is a lookout

thanks and yes i will help you with what excatly do you need help with i can help you with everything you need except getting a picture as a background