Paint Bucket tool
I am attempting to change the colors of the Yellow and Red areas outlined:

Because these shapes are just paths that cross, I am unable to edit them without using the Live Paint Bucket tool
Which wouldn't be a problem, however, I want to fill the areas with a lower opacity purple. When I try to change the opacity in this toolbar and the Paint Bucket tool (Outlined in White) to apply it, the opacity isn't altered.

This seems like the only way to change the opacity; can I alter it with the "Fill" tool

