I am trying to help an organization create a t-shirt for an upcoming competition. I am looking to take simple images for example the outline of the state of Idaho and some other simple line drawings and layer them to create the image for the t-shirt.
I have managed to create a selection then a path of the state of Idaho but can't create a transparent outline of the state of Idaho. I also have another image of a bunch of lines and patterns, but it is on a white background.
How can I convert these into lines with a transparent background?