It's true that white walls and neutral colors can make small rooms look and feel airier and more open, but limiting oneself to a neutral palette is no longer the only accepted option for small spaces.
There's something undoubtedly soothing about a serene white, gray, or beige space with natural woods and the occasional hint of charcoal or black. But especially in rooms lacking architectural character, pops of color, dark walls, and paint effects are effective and accepted ways to infuse a small space with drama and personality. While there's no right or wrong answer to the color/no color quandary, today these two types of spaces come face to face. Which do you prefer?
Neutrals vs. Brights:
(Images: as linked above)