Ngatu is the monumental beaten-bark cloth of Tonga — sheets stretching thirty metres long, produced by women's collectives who pound paper mulberry fibre and rub soot-black and mangrove-brown pigment over carved kupesi stencil tablets. This design system channels that workshop-floor materiality: warm umber grounds, strict horizontal banding, and hand-rubbed motif edges that never resolve into vector perfection.

The visual rhythm follows the langanga grid — alternating pigment bands carrying manulua birds, tokelau feletoa stars, and fata chevrons. Every surface feels fibrous, every border feels stamped, and compositions always run long rather than square, honouring the tradition that longer cloth carries heavier honour.