Busted!
If it's what I think it is, It will help adjust shaders graphically so you don't need to guess so much at first. It might reduce so many test renders. An artist would probably get better at it with more time.
I thought it was a bit strange that an advanced user like Zaxxon would be lost. For me however, That just a normal working mode.
I 'm glad someone is taking bullets for us.
I won't tell.