zigzag wave line patterns, smooth end squiggly horizontal white lines. curvy underlines

amplitude angular bent billow black corrugated crisscross curvature curve curvy divider edge edgy element end equalizer flex frame graphic horizontal isolated jagged line lines outline parallel pattern patterns ripple round set sharp sine sinus smooth spring squiggle squiggly stitch template underline underlines undulate vector wave waveform wavy white wiggle wiggly winding wriggle wriggly zigzag