zigzag line. undulate wave. wavy curve and squiggle. wiggly pattern for divider, sine and border. serrated pattern with different

amplitude angular black border brush corrugated curvature curve curvy decoration divider edge element frame geometric graphic horizontal jagged line parallel pattern ripple round separator serrated set sine sinuous sinus smooth squiggle squiggly stitch stroke underline undulate vector water wave waveform wavy white wiggle wiggly winding wriggly zag zig zigzag