Unit Grid Proportion

100 small squares grow out of the grid centre ring by ring (4 frames per ring + ≤3 frames of deterministic jitter, filled in 1.1s; opacity + scale .8→1 only, no displacement), then from the top-left they are coloured one by one in reading order with the accent colour (0.035s per cell) while the 128px number on the right counts 0→37 on the same clock; the legend floats in last — "37%" laid out as 37 countable individuals