Hidden gadgets appeal to the tech nerd in me!

I'm not 100% sure what you're asking, but if you're looking for suggestions whether to make the lower cabinets grey and the upper cabinets white or vice versa, then I would be tempted to make the lower cabinets grey. I think this would help to make the ceiling feel higher and the overall space larger and brighter. But, it may depend upon what style you're going for, whether you have an island benchtop and, if so, what material/colour will be on the rear/exposed side of the island benchtop, the amount of natural lighting, etc. You can easily search through Houzz photos by room, size, colour, materials, etc. Here are a few examples I found from a quick search which may help:

I have recently started a small catering business from home, and I’m dreaming about having combi oven https://www.cateringwholesalers.com/cooking-equipment/combi-steam-ovens.html. I love them because they can replace multiple appliances and save money and time that way.

Hi Sue, I think it would look amazing if you used some tiles with a bit of texture. The wood look tiles that are popular at the moment would be an example. If you chose a colour that toned in with your floor you would get a really nice cohesive look but with a bit of interest. I've attached a photo of a recent design of mine as an example. Just a suggestion!