In the idea of having a faster workflow, I would like to know if it is possible to change the color of the default (no) material of Cycles. I mean, if you don't assign an material to an object, it is by default a diffuse material that is light grey (0.8 white).
I like to have my objects having that default light grey because then I can give certain meshes more emphasis simply by assigning them a pure white material; which give the scene some contrast.
How could I change the color of that default light grey so I could darken it and accentuate the contrast ?
The idea being to be able to do this using no materials (default color), because assigning ALL meshes a material would be too long in my work process.
Actually I use a light to make my subject more bright. But this has a lot of inconvenients, that is why I ask !