message: tweak: tweak the default dashArray value for `dashed`.
diff: @@ -23,7 +23,7 @@ export function normalizeLineDash(lineType: any, lineWidth?: number): number[] |
  }
  lineWidth = lineWidth || 1;
  return lineType === 'dashed'
  - ? [2 * lineWidth, lineWidth]
  + ? [4 * lineWidth, 2 * lineWidth]
  : lineType === 'dotted'
  ? [lineWidth]
  : [];
  