No black, no white, no gray: two colors, a warm ink and paper. Pause at 0:33 and the gray lines on each card are dots of the ink; by 0:43 the thread has turned all three solid.
Notes Toward a Softer Edge
I was taught a shape is where it stops:
the circle at its rim, the square
at the four places it refuses you.
For years I drew my edges hard.
Then I watched the dark come down a wall at dusk and could not find where it began, only a slow agreement between two colors.
I called it gray. Up close it was ink
and paper, taking turns.
So let me be a gradient a while,
dots that agree from far away,
a square that opens like a door,
a blur that is not lost, only generous.