Change sculpting brush alpha visibility? When using brush alphas/texture as stencils in sculpting mode, it's often really hard to actually see the stencil image and know where it is or how it is rotated. 

Is there any way to bump up the contrast or something so it shows up better?
There is a fantastic addon by Kgeogeo called Stencil Widget that allows a lot of control over the Stencil images in both Texture paint and Sculpt.

You will see an icon looking like a square with a triangle missing - that is the alpha control. 

You can get it here and watch a short video here