ANNIE SCHLECHTER When it comes to choosing a color palette for your home, there is one frequently overlooked step that you just shouldn't skip: Considering where on the warm t0 cool spectrum your shades of paint lie. That's right, there's more to just picking a color—there are arm grays and cool grays, warmer blues and cooler...you get the idea. And while this might seem like a minor distinction, those details usually have the most transformative power in design. To help understand and brush up on those color theory basics, we tapped interior designer Michelle Gerson to learn all about war...