Yes, I apologize for the radio silence...
I had a bit of an issue with my workstation and combined with summer time, this project was put on hold for a bit. That being said, as far as I'm concerned, it is still happening!
I received a second batch of samples from SP and I think the new stock colours are much more coherent with the color-matched samples. Here's the general esthetic we are going for in photorealistic lighting:
The idea is to cover most popular layouts (60% to full size), with a special thought for orthogonal, calculator-like boards such as the Planck/Preonic and of course various numpads.
Here's a (low quality) non-edited photo of the new samples, useful for comparison:
Stay tuned...