Raw pixels in the shape of a DOM ImageData: RGBA bytes, row-major. Accepted by deriveMapColorsFromImage so an image decoded elsewhere (a worker, a test) can be themed without a canvas.
ImageData
Raw pixels in the shape of a DOM
ImageData: RGBA bytes, row-major. Accepted by deriveMapColorsFromImage so an image decoded elsewhere (a worker, a test) can be themed without a canvas.