Windows are how light enters your space. If frames and trims are painted in exactly the same colour as the wall, they visually disappear a bit. You see light, but the window itself isn’t emphasised.
Painting trims in a slightly contrasting shade—crisp white on coloured walls, or darker frames on pale walls—outlines the window. It draws attention to the shape and frames the view outside. The natural light feels more like a feature and less like “just there.”
This small bit of contrast can make even simple, standard windows look more architectural and intentional.
