[mediaqueries-4] Made slight adjustments, adding max brightness and removing color gamut for dynamic-range

Author: Greg Whitworth

mediaqueries-4/Overview.bs

@@ -1712,38 +1712,38 @@ High dynamic range (HDR) represents the combination of brightness, color depth,
 	<dt><dfn>high</dfn>
 	<dd>
 		If the following are true for the UA and the output device:
-		* color gamut is <a>p3</a> or <a>rec2020</a>
+		* max brightness is considered high
 		* color depth is greater than 24 bit
 		* has a <a href="#contrast-of-display">high contrast ratio</a>
 	<dt><dfn>standard</dfn>
 	<dd>
 		If the following are true for the UA and the output device:
-		* color gamut is <a>sRGB</a>
+		* max brightness is considered standards
 		* color depth is 24 bit or 8 bit per color component of RGB
 		* has a <a href="#contrast-of-display">low contrast ratio</a>
 </dl>
 
-<h3 id="contrast-of-display">
-	Determining contrast of display</h3>
+<h3 id="contrast-brightness-of-display">
+	Determining contrast and brightness of display</h3>
 
-This text is non-normative. There currently is no agreed upon standardization of 
-high contrast ratio or low contrast ratio as it relates to displays. 
-As such, the determination for <a>dynamic-range</a> and <a>video-dymanic-range</a> 
-will be defined by the user agent.
+This text is non-normative. There currently is no agreed upon standardization of
+high contrast ratio, low contrast ratio, max brightness or low brightness as it
+relates to displays. As such, the determination for <a>dynamic-range</a> and
+<a>video-dymanic-range</a> will be defined by the user agent.
 
 <h3 id="video-prefixed-properties">
 Handling bi-plane scenarios</h3>
 
-	In some scenarios, such as TVs, they have a graphics plane dedicated 
-	to video that has its own discrete hardware. In order to allow UAs in 
-	environments that have more than one plane for graphics rendering the 
-	following properties should be used to correctly answer video specific 
-	queries.
+	In some scenarios, such as TVs, the user agents may have a graphics
+	plane dedicated to video that has its own discrete hardware. In order
+	to allow UAs in environments that have more than one plane for graphics
+	rendering the following properties should be used to correctly answer
+	video specific queries.
 
-	For any UA on a bi-plane device you **MUST** return the values for: 
+	For any UA on a bi-plane device you **MUST** return the values for:
 	<a>video-color-gamut</a>; <a>video-width</a>; <a>video-height</a>; <a>video-resolution</a>;
-	<a>video-dynamic-range</a>; based on the plane that renders video. If the UA is not in a bi-plane 
-	scenario then it **MUST** return the values of the single plane 
+	<a>video-dynamic-range</a>; based on the plane that renders video. If the UA is not in a bi-plane
+	scenario then it **MUST** return the values of the single plane
 	(they're effectively aliases to their non-video counterparts).
 
 <h3 id="video-color-gamut">
@@ -1803,7 +1803,7 @@ Video-Width: the '@media/video-width' feature</h3>
 	Type: range
 	</pre>
 
-	The '@media/video-width' media feature describes the width of the targeted display's video plane area 
+	The '@media/video-width' media feature describes the width of the targeted display's video plane area
 	of the output device. For continuous media, this is the width of the viewport
 	(as described by CSS2, section 9.1.1 [[!CSS21]]) including the size of a rendered scroll bar (if any).
 	For paged media, this is the width of the page box (as described by CSS2, section 13.2 [[!CSS21]]).