The green and the yellow are the only fabric on there in single "doses", ie., each is used only once. The others are used in more than one place. If you want it lighter, lay more of the yellow over the green that is now in there to see if it makes a difference. If so, you don't have to take it apart, just applique sider strips of the yellow over the top of the green. I like the use of the fuscia and brown that both pick up the inner border.