Dark colors absorb light, so the darker the colors the more artificial light you'll need. If you have selected dark wood paneling, keep furnishings as light as possible. Size of the room. Color is a major factor in making rooms appear cozy or spacious. Decide which result you wish to create.
Rooms appear spacious by using light colors with a minimum of dark and light contrast.
Use small-scaled prints and furniture. Use large prints only if the colors are light. Blend large pieces of furniture into backgrounds using light colors. Keep furnishings to a minimum to avoid clutter. Use large-scale prints and furniture to fill a space.