The thin gold line running around every panel on this vanity is called a struck line, and it is the detail that separates furniture finished with care from furniture finished quickly.
It is not tape, and it is not a transfer. It is drawn by hand with a long-haired lining brush, loaded once and pulled in a single continuous movement along the length of a panel. The brush is held at a constant angle, moved at a constant speed, and not lifted - because every hesitation shows as a thickening, and every restart shows as a join.
Against a black ground there is nowhere for a wobble to hide. On a mid-tone or a figured timber the eye forgives a line that wanders by half a millimetre; on ebonised black it reads as a fault from across the room, because the line is the only thing on that surface for the eye to measure.
Corners are the test. A struck line has to turn a corner cleanly and meet its neighbour at the exact point where both would have crossed, without overshooting past it. Our finishers pull each side separately and stop short, then close the corners last with a smaller brush, one at a time.
On a piece with seven drawer fronts, two deck boxes and two pedestals, that is a great many lines and a great many corners - and every one of them is drawn by a person.