I saw Ikea's Besta TV stuff. Looked perfect for the job, with grey glass panels that can be illuminated from behind. But, they come in 1200mm panels, our run is 3m, so wouldn't work. As for there actual kitchen panels, they don't seem to do them in white! Only black, stainless steal or some tiled white pattern.

An upstand sits on the worktop and is around 4" high. A splashback normally fits behind the hob area to prevent splashes ruining the wall. You can have one or both fitted.

There are tile stickers you could try. I wouldn’t think they are very durable to be honest. You could probably tile over the splashback with tiles to lighten the effect?

Hi Adrian, thanks for the details - love the Caraz! Absolutely on trend colour, and a nice calm, sophisticated palette. Always amazes me just how much influence ambient light has, as the pictures show both to be even warmer in reality. With that info, I think I'd still be opting for white/off-white close to your worktop colour - on, if suitable, using the worktop material as a splashback, but you'd need to check with the manufacturer on suitability close to gas flame. Not all would be permissible. An alternative would be to go with whatever you have picked as flooring tile, if available in large enough size, then cut & edge to suit. Now that large format tiles are becoming so popular, we're finding clients opting for this more frequently, to add a bit more texture compared to flat, plain glass.