For a warm and inviting retro kitchen, consider a Mediterranean theme. This kitchen features warm colors, rustic materials, and decorative tiles. The cabinets are typically made of solid wood, with a distressed finish. The countertops are made of natural stone like granite or travertine, adding a touch of elegance. The appliances are designed to look vintage, with brass or bronze finishes. The color palette of this kitchen is typically earthy, with shades of terracotta, olive green, and warm browns. To complete the Mediterranean look, add some decorative tiles as a backsplash and some wrought iron accessories. This kitchen is perfect for those who want to create a cozy and inviting retro space in their home.