Summer can be a season of fads and flings, but when it comes to home decor, this year’s go-to looks come with staying power. Think classic colors for your walls and accessories, low-maintenance materials (hello, indoor-outdoor living), and playful prints that can swing casual or high-brow. So whether you want to refresh your home with the latest “it” color or just find a new accent chair, these four design trends will add a seasonal pop that won’t feel out of place when the weather starts to cool. ‘Tis the season for fun, and we’re not just talking about beach trips and backyard barbecues. Warm weather and summer Fridays also call for a looser, livelier take on home decor, and a splattering of speckles across dinnerware, wall coverings, fabric, mugs, planters — anything, really — is the answer. Cope, a Brooklyn-based textiles and home goods brand from Nick and Rachel Cope, recently introduced a speckled print that captures “a sense of playfulness and being carefree and the ability to bring an artistic feeling into a room,” says Rachel. Inspired by paint-splattered floors and made by hand, it comes in eight colorways as wallpaper, fabric and throw pillows. (The latter is the per...