Just a hint of quatrefoil is a subtle detail in this room. Look closely: They are carved near the top of the wood cabinets.
Design tip: If you want to emphasize high ceilings in a kitchen, extend your cabinets up to the ceiling and add an attention-getting detail like these carvings.
Nerdy detail: According to Wikipedia, quatrefoils are often found as tracery, and this picture is from Tracery Interiors. Coincidence? You decide.