nl_tokens: draw single polyline
pl_tokens: <mask> color_path ( d , ctx ) { ctx . beginPath ( ) ; if ( ( __ . bundleDimension !== null && __ . bundlingStrength > 0 ) || __ . smoothness > 0 ) { single_curve ( d , ctx ) ; } else { single_path ( d , ctx ) ; } ctx . stroke ( ) ; }