Fine pattern
小紋 komon

Not one motif but the family of tiny all-over repeats (same, gyōgi, tōshi and others) first worn on samurai formal dress; it reads as plain from afar, so it is quietly elegant.
Late Muromachi period; flourished in Edo (1603–1868)
Komon are tiny repeats stencil-dyed with rice-paste resist through paper katagami, many cut in Shiroko and Jike in Ise. Paintings show komon workshops thriving by the late Muromachi period. In Edo, daimyō houses each adopted a fine 'fixed pattern' (sadame-gara) for their kamishimo, so retainers could be identified by it; the Edo 'three' (same, gyōgi, kaku-dōshi) became formal. Townspeople, restricted by sumptuary edicts, embraced subtle komon too, giving the name Edo komon.
Edo komon is a designated traditional craft of Tokyo and is worn as semi-formal kimono.