This! The few frames I've built for others I have taken care to represent that the color that was the goal will not be the exact tint/tone/shade (very close but not exact) that the frame ends up with. Even with the most straight forward color matching system and choices some drift of the paint mix will be there. Then there's the issues of chip charts having other colors about near by and, usually, lots of white between the chips. Then there's the issue of what light is being used to view under, the sun on a bright day, cloudy day, indoor lighting of which bulb design. Then there's the issue of how the light reflects differently on a surface with multiple curves and edges VS a flat page or door panel. Andy