Radial Arcs
Adapted from Arcs, created by Fabian Morón Zirfas.
Four heavy arc segments occupy one circular path, separated by narrow, evenly spaced gaps. Their degree-based rotation demonstrates closure: the eye completes the ring even though no full circle is drawn.
// ABOUTME: Arranges four heavy arc segments around one circle.
// ABOUTME: Uses even angular gaps to imply a complete ring through closure.
// Adapted from Arcs by Fabian Morón Zirfas: https://github.com/ff6347/gestalten-in-code/tree/e8b8f8446c13c01494ccfd1e92ce2bb1638daf66/form/2d/processing/arcs
background("#ffffff");
noFill();
stroke("#000000");
strokeWidth(2);
repeat(angle, 90, 450, 90) {
arc(50, 50, 16.67, angle - 50, angle + 20);
}