Low-quality paint leads to peeling, dulling, and damage from daily wear and cleaning. Plus, you'll end up having to apply extra layers to get an even coating.
Battenboard, shiplap, and wainscoting are popular options you can choose, but it's nearly impossible to remove these indoor sidings once you have them.
Bold colors will stand out, but they will also be distracting. If you're a true color maximalist, save these choices for powder rooms or entryways where you don't spend much time.
Choose a wall at the far side of the room so you feel drawn into the space, or use the dark paint on a small, irregularly shaped wall to add contrast without it dominating.