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Brand

Texture & materials

Materials and light are the system; colour rides on top. Matte hardware, a recessed screen, neutral glass — and grain on everything.

Grain gradient — the brand texture

Warm (the brand hue into a warm companion) and cool (a cool companion into the brand hue). Marketing gets the full field; product surfaces get a grain whisper; the device keeps its own matte speckle. The field relights with the seed like everything else; the library’s GrainField is its one-ramp version.

Molded materials

chassis
screen well
button cap
lit cap

These four are --echo-* roles, so they relight with the seed. The library ships them as Panel (raised and screen) and HardwareButton; the full overlay set lives in Textures.

Rules

  • One key lightTop-left. Every highlight and shadow agrees with it.
  • Colour is light, not paintThe glass is neutral; colour only arrives as Echo’s aura, in the seed’s hue. Never tint the glass.
  • Nothing is a flat fillMatte speckle on hardware, dot-matrix on the screen, spray-grain in marketing.