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[mediaqueries] Change p3 to dci-p3 per WG decision #262

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Jul 4, 2016
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[mediaqueries] Change p3 to dci-p3 per WG decision #262

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18 changes: 9 additions & 9 deletions mediaqueries/Overview.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -1464,7 +1464,7 @@ Color Display Quality: the 'color-gamut' feature</h3>

<pre class='descdef mq'>
Name: color-gamut
Value: srgb | p3 | rec2020
Value: srgb | dci-p3 | rec2020
For: @media
Type: discrete
</pre>
Expand All @@ -1477,7 +1477,7 @@ Color Display Quality: the 'color-gamut' feature</h3>

Note: The query uses approximate ranges for a few reasons.
Firstly, there are a lot of differences in display hardware.
For example, a device might claim to support "Rec 2020",
For example, a device might claim to support "Rec.2020",
but actually renders a significantly lower range of the full gamut.
Secondly, there are a lot of different color ranges that different devices support,
and enumerating them all would be tedious.
Expand All @@ -1496,21 +1496,21 @@ Color Display Quality: the 'color-gamut' feature</h3>
Note: It is expected that the vast majority of color displays
will be able to return true to a query of this type.

<dt><dfn>p3</dfn>
<dt><dfn>dci-p3</dfn>
<dd>
The output device can support approximately the gamut
specified by the DCIP3 Color Space or more.
specified by the DCI P3 Color Space or more.

Note: The ''p3'' gamut is larger than and includes the ''srgb'' gamut.
Note: The ''dci-p3'' gamut is larger than and includes the ''srgb'' gamut.

Issue: Add ref for DCIP3.
Issue: Add ref for DCI P3.

<dt><dfn>rec2020</dfn>
<dd>
The output device can support approximately the gamut
specified by the ITU-R Recommendation BT.2020 Color Space or more.

Note: The ''rec2020'' gamut is larger than and includes the ''p3'' gamut.
Note: The ''rec2020'' gamut is larger than and includes the ''dci-p3'' gamut.

Issue: Add ref for BT.2020.
</dl>
Expand All @@ -1520,7 +1520,7 @@ Color Display Quality: the 'color-gamut' feature</h3>
in the range of DCI P3:

<pre class="lang-css">
@media (color-gamut: p3) { … }
@media (color-gamut: dci-p3) { … }
</pre>
</div>

Expand All @@ -1530,7 +1530,7 @@ Color Display Quality: the 'color-gamut' feature</h3>
As a result,
this feature is best used in an "ascending" fashion--
set a base value when ''(color-gamut: srgb)'' is true,
then override it if ''(color-gamut: p3)'' is true, etc.
then override it if ''(color-gamut: dci-p3)'' is true, etc.

Note: Some output devices,
such as monochrome displays,
Expand Down