title: Victory Native (React Native) - VictoryLine - change line color when y value is out of limits
body: <p>I'm trying to draw a line chart with high and low limits.
  I need to change the line color when y value above the high limit or below the low limit.
  This is the result I want to achieve:</p>
  <p><a href="https://i.stack.imgur.com/PSWkc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/PSWkc.png" alt="enter image description here" /></a></p>
  <p>any ideas?</p>
  <p>thanks</p>