What is the best way to indicate color on low fidelity wireframe? I'm creating a low fidelity wireframe and I've been instructed to not use any specific colors aside from the basic (the visual designer will handle all that) but there are certain banners, elements, and text that need to be a specific color aside from black and white.
What is the best way to display this? Is it best to shade the interior of the element gray to show that it will need color?