Feather Microscopy renders a single bird feather the way a dark-field scope does: barbs and barbules branching across a near-black field, each filament glowing with non-pigmentary structural color. The cyan-blue is not pigment but physics — coherent light scattering off spongy keratin nanostructure, the same mechanism that lights a kingfisher, a blue jay, a Morpho wing.

The system speaks the visual language of modern biophysics imaging: clean technical sans, high-contrast luminance, scale bars and measurement annotations, the optical precision of an instrument. Everything sits on the dark-field void, where structural color reads as emitted light rather than applied paint.