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<revision pkgversion="3.7.1" version="0.2" date="2012-11-16" status="outdated"/>
 <revision pkgversion="3.10" date="2013-11-04" status="candidate"/>
 <revision pkgversion="3.28" date="2018-04-05" status="review"/>
 
 <credit type="author">
 <name>Richard Hughes</name>
 <email>richard@hughsie.com</email>
 </credit>
 <credit type="editor">
 <name>Ekaterina Gerasimova</name>
 <email>kittykat3756@gmail.com</email>
 </credit>
 <credit type="editor">
 <name>Michael Hill</name>
 <email>mdhillca@gmail.com</email>
 </credit>

<desc>Use the supplied test profiles to check that your profiles are being
 applied correctly to your screen.</desc>
 </info>

<title>How do I test if color management is working correctly?</title>

The effects of a color profile are sometimes subtle and it may be hard to
 see if anything much has changed.

The system comes with several profiles for testing that make it very clear
 when the profiles are being applied:

<terms>
 <item>
 <title>Blue</title>
 This will turn the screen blue and tests if the calibration curves are
 being sent to the display.
 </item>

 </terms>

<steps>
 <item>
 Open the <gui xref="shell-introduction#activities">Activities</gui> overview and
 start typing <gui>Settings</gui>.
 </item>
 <item>
 Click on <gui>Settings</gui>.
 </item>
 <item>
 Click <gui>Color</gui> in the sidebar to open the panel.
 </item>
 <item>
 Select the device for which you want to add a profile. You may wish to
 make a note of which profile is currently being used.
 </item>
 <item>
 Click <gui>Add profile</gui> to select a test profile, which should be
 at the bottom of the list.
 </item>
 <item>
 Press <gui>Add</gui> to confirm your selection.
 </item>
 <item>
 To revert to your previous profile, select the device in the
 <gui>Color</gui> panel, then select the profile that you were using
 before you tried one of the test profiles and press <gui>Enable</gui> to
 use it again.
 </item>
 </steps>

Using these profiles, you can clearly see when an application supports
 color management.

</page>