Fix Leaves as planes in URP?

Using URP I have been trying to figure out how to add trees to my scenes and they always end up purple. As such I have to add them in at base, change shaders and then add textures. The trunks seem fine, but when I add the leaf textures on 2 separate trees the leafs show up as individual planes (both displaying differently). I have tried Googling, but there is not much on this topic and I am not sure if maybe my texture simply needs another format or maybe a slight redesign? I have added 2 photos and would love any suggestion in any direction. I have no experience with putting together 3D objects or recreating trees in URP.