<page xmlns="http://projectmallard.org/1.0/"
      type="topic" style="task"
      id="display-night-light">
  <info>
    <link type="guide" xref="prefs-display"/>

    <revision pkgversion="3.28" date="2018-07-28" status="review"/>

    <credit type="author copyright">
      <name>Michael Hill</name>
      <email>mdhillca@gmail.com</email>
      <years>2018</years>
    </credit>

    <include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"/>

    <desc>Night Light changes the color of your displays according to the time
    of day.</desc>
  </info>

  <title>Adjust the color temperature of your screen</title>

  <p>A computer monitor emits blue light which contributes to sleeplessness and
  eye strain after dark. <gui>Night Light</gui> changes the color of your
  displays according to the time of day, making the color warmer in the
  evening. To enable <gui>Night Light</gui>:</p>

  <steps>
    <item>
      <p>Open the <gui xref="shell-introduction#activities">Activities</gui>
      overview and start typing <gui>Settings</gui>.</p>
    </item>
    <item>
      <p>Click on <gui>Settings</gui>.</p>
    </item>
    <item>
      <p>Click <gui>Devices</gui> in the sidebar.</p>
    </item>
    <item>
      <p>Click <gui>Displays</gui> in the sidebar to open the panel.</p>
    </item>
    <item>
      <p>Click <gui>Night Light</gui> to open the settings.</p>
    </item>
    <item>
      <p>Set the <gui>Night Light</gui> switch to <gui>ON</gui>. The screen
      color will follow the sunset and sunrise times for your location. Click
      the <gui>Manual</gui> button to set the times to a custom schedule.</p>
      <note>
        <p>The <link xref="shell-introduction">top bar</link> shows when
        <gui>Night Light</gui> is active. It can be temporarily disabled from
        the system menu.</p>
      </note>
    </item>
  </steps>

</page>
