[css-color-4] Specify resolved RCS where origin color is currentColor, w3c#7978

Author: svgeesus

css-color-5/Overview.bs

@@ -2317,7 +2317,19 @@ or any other color or monochrome output device which has been characterized.
   			color-mix-currentcolor-002.html
 		</wpt>
 
+<h3 id="resolving-rcs">
+	Resolving Relative Color Syntax Values
+</h3>
 
+		If all <<color>> parameters resolve
+		to the corresponding colors in their respective color spaces,
+		the computed value is the absolute <<color>> value,
+		in the specified RCS color space,
+		resolved according to [[css-color-4#resolving-color-values]].
+		Otherwise (if ''currentColor'' was used in the function),
+		the computed value is the Relative Color Syntax function
+		with each <<color>> parameter resolved according to [[css-color-4#resolving-color-values]],
+		thus preserving inheritance into child elements.
 
 <h3 id="resolving-device-cmyk-values">
 	Resolving ''device-cmyk'' Values
@@ -2514,12 +2526,7 @@ is the same as that specified in
 </h3>
 
 The serialization of the result of a relative color function
-is a <<color>>,
-as defined in [[css-color-4#serializing-color-values]].
-The form used
-is the same as that used to specify
-the relative color,
-but using the absolute form.
+is the resolved value.
 
 <wpt>