[css-color] treat currentcolor as inherit at computed value time as well

Author: frivoal

css-color/Overview.bs

@@ -170,12 +170,12 @@ Resolving Color values</h2>
 
 	<ul>
 		<li>
-		The computed value of the ''<color>/currentcolor'' keyword is ''<color>/currentcolor''.
+		If ''<color>/currentcolor'' is the specified value of the 'color' property,
+		it is treated as if the specified value was ''inherit''.
 
-		If ''<color>/currentcolor'' is used as the value of the 'color' property,
-		the used value is the same as if ''inherit'' had been specified instead.
 		For all other properties that accept a <<color>>,
-		the used value of ''<color>/currentcolor'' is the same as
+		the computed value of the ''<color>/currentcolor'' keyword is ''<color>/currentcolor'',
+		and the used value of ''<color>/currentcolor'' is the same as
 		the used value of the 'color' property on the same element.
 
 		Note: This means that if the ''<color>/currentcolor'' value is inherited,