[roughly]

re: setr

> You'd be stuck with essentially one "material" though -- eg color or brush or whatever -- but I could see its utility as a dedicated single-purpose device (like only intended for sketching/notes -- which I guess is mostly true of remarkable anyways)

I'd be curious about human perception of color matching/etc at the <50ms level - I'd suspect if you had _something_ that then became the actual color/brush, our visual system would probably just backfill to say it'd always been that color/texture.