[css-color-4] Rearrange list for better logical grouping.

Author: tabatkins

css-color-4/Overview.bs

@@ -731,30 +731,35 @@ CSS System Colors</h3>
 	These names are case-insensitive and shown here with mixed capitalization for legibility.
 
 	<dl id="system-color-values" data-dfn-type="value" dfn-for="<system-color>">
-		<dt><dfn>ActiveText</dfn>
-		<dd>Text in active links.
-		<dt><dfn>ButtonFace</dfn>
-		<dd>The face background color for push buttons.
-		<dt><dfn>ButtonText</dfn>
-		<dd>Text on push buttons.
 		<dt><dfn>Canvas</dfn>
 		<dd>Background of application content or documents.
-		<dt><dfn>Field</dfn>
-		<dd>Background of input fields.
-		<dt><dfn>FieldText</dfn>
-		<dd>Text in input fields.
-		<dt><dfn>GrayText</dfn>
-		<dd>Grayed (disabled) text. This color is set to #000 if the current display driver does not support a solid gray color.
-		<dt><dfn>Highlight</dfn>
-		<dd>Background of item(s) selected in a control.
+		<dt><dfn>Text</dfn>
+		<dd>Text in application content or documents.
+
 		<dt><dfn>HighlightText</dfn>
 		<dd>Text of item(s) selected in a control.
+		<dt><dfn>Highlight</dfn>
+		<dd>Background of item(s) selected in a control.
+
 		<dt><dfn>LinkText</dfn>
 		<dd>Text in non-active, non-visited links.
-		<dt><dfn>Text</dfn>
-		<dd>Text in application content or documents.
 		<dt><dfn>VisitedText</dfn>
 		<dd>Text in visited links.
+		<dt><dfn>ActiveText</dfn>
+		<dd>Text in active links.
+
+		<dt><dfn>Field</dfn>
+		<dd>Background of input fields.
+		<dt><dfn>FieldText</dfn>
+		<dd>Text in input fields.
+
+		<dt><dfn>ButtonFace</dfn>
+		<dd>The face background color for push buttons.
+		<dt><dfn>ButtonText</dfn>
+		<dd>Text on push buttons.
+
+		<dt><dfn>GrayText</dfn>
+		<dd>Grayed (disabled) text. This color is set to #000 if the current display driver does not support a solid gray color.
 	</dl>
 
 	Earlier versions of CSS defined additional <<system-color>>s,