title: Using PencilKit in dark mode results in wrong color
body: <p>When in dark mode, it seems that all the color set in PKInkingTool are reversed in brightness. If I choose a bright red I got a dark red, and vice versa.</p>
  <p>For example, if I use UIColorPickerViewController to select a color:</p>
  <pre><code>PKInkingTool(.pencil, color:color, width:10)
  </code></pre>
  <p>The color that shows up in PKCanvasView is not the correct color. The only way that seems to work is not to support dark mode.</p>
  <pre><code> overrideUserInterfaceStyle = .light
  </code></pre>
  <p>Is there a way to get PencilKit to use the correct color rather than convert color automatically?</p>