Bitmap

Chunky 8-bit pixel loader — a hard-edged grid that fills cell-by-cell. Determinate bar (with a pulsing frontier) or an indeterminate marching band, plus a crisp bitmap-radar spinner that snaps cell-to-cell via steps(). Zero dependencies, SSR-safe, role=progressbar with aria-valuenow; collapses to a designed static frame under reduced motion.