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<?xml version="1.0" encoding="utf-8"?>
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<page xmlns="http://projectmallard.org/1.0/" type="topic" style="task" id="color-testing" xml:lang="lv">
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<link type="guide" xref="color#problems"/>
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<link type="seealso" xref="color-gettingprofiles"/>
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<desc>Testing color management isn't hard, and we even supply some test profiles.</desc>
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<name>Richard Hughes</name>
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<email>richard@hughsie.com</email>
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<include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>
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<title>How do I test if color management is working correctly?</title>
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The effects of a color profile are sometimes subtle and it may be
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hard to see if anything much has changed.
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In GNOME we ship several profiles for testing that make it very
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clear when the profiles are being applied:
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<em>Bluish Test</em>: This will turn the screen blue and tests
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if the calibration curves are being sent to the display
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<em>ADOBEGAMMA-test</em>: This will turn the screen pink and
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tests different features of a screen profile
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<em>FakeBRG</em>: This will not change the screen, but will swap
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around the RGB channels to become BGR.
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This will make all the colors gradients look mostly correct, and
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there won't be much difference on the whole screen, but images
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will look very different in applications that support color
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Add one of the test profiles to your display device using the
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<guiseq><gui>System Settings</gui><gui>Color</gui></guiseq>
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Using these profiles you can clearly see when an application
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supports color management.
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gnome-help/lv/color-testing.page
