change only the kitchen stone material countertop backsplash and island to match a refined calacatta style white marble exactly like the reference image keep the entire design layout colors cabinetry lighting and camera angle unchanged the stone should have clean soft white base not creamy not yellow thin elegant light grey veining low contrast veins slightly organic and flowing minimal pattern not busy not dramatic premium polished or soft polished finish very subtle depth and realism not flat apply the same slab consistently across backsplash full height countertop island including waterfall sides make sure veins are continuous and aligned across surfaces no gold beige tones in the veins no heavy or bold calacatta patterns keep it light modern and minimal luxury negative prompt do not change anything except the stone no warm beige marble no gold veining no heavy veins no dramatic marble no texture change on cabinets no redesign no color shifts no added elements