Flexibility is often the most important concept for modern renters, and Marcus Hiles says that in response to this, homes are being built with open floor plans and adaptable room spaces. The idea of areas marked by different materials or colors in ceilings or floors is called implied spaces, and is a contemporary way to make rooms and homes appear larger while avoiding multiple walls and other obstructions. Breaking through barriers is the name of the game for modern home designers, with presidence given to features like larger windows, allowing for increased natural light and often replacing walls outright. This also helps to blend the indoors with the outside world. To make homes more well-rounded, hot tubs, fitness areas and spas are regularly appearing in-unit, making relaxation and exercise easier than ever. And as the popularity of cooking restaurant-worthy meals has become mainstream, so have big kitchens: with gourmet appliances and cabinet-like islands, kitchens are typically allotted additional overall square footage and serve as the center of the home, overtaking dining and living rooms as the place families come together.