(Lowe Case Study) Shaders - Tutorial/Help

Hi devs,
I'm researching about Hololens dev. There's a lot of cool stuff like the Lowe case study here:
https://docs.microsoft.com/en-us/windows/mixed-reality/case-study-lessons-from-the-lowes-kitchen

In the video they mention the Reflective, Lambertian and Vertex lit shaders and that they're available in the HoloToolkit-Unity. I can't find them in there (https://github.com/Microsoft/MixedRealityToolkit-Unity).

Now(!), I just stumbled upon the "obsolete" folder and there they are?!
https://github.com/Microsoft/MixedRealityToolkit-Unity/tree/master/Assets/HoloToolkit/Common/Shaders/Obsolete
But it's obsolete, so I should use the "FastConfigurable" here:
https://github.com/Microsoft/MixedRealityToolkit-Unity/tree/master/Assets/HoloToolkit/Common/Shaders/FastConfigurable/Shaders

Are there any good tutorials, how-tos, etc. about the usage of the shaders?
Thanks