I feel like the counter and backsplash are fighting. I would want to replace the backsplash with something quieter.

The backsplash must go. And take off the 4” granite backsplash before you re-tile.

You need a kitchen designer immediately. The horrible taste of the previous owner that prompted that horriffic backsplash choice probably extends throughout the home and must be erased completely. Stamp out the gray. Stamp out the busy. Everywhere in the home.

Simplify and whiteout quite a few things here, and it can be salvaged. Do not paint those cabinets. They are the best thing about the room. New light counters, stainless appliances, and a calm light backsplash, with white painted walls, and a new lighting plan can work wonders.

You could have a really nice refreshed kitchen just by removing and replacing the backsplash-including the 4” counter piece. Replace light fixture and trim out the island with an upgraded finish or new color. The cabinets look like a nice neutral backdrop.