[css-color-4] Updates serialization of origin colors w3c#10328

Author: svgeesus

css-color-5/Overview.bs

@@ -3243,13 +3243,12 @@ The serialization of the declared value of a relative color is:
 	followed by a single space, 
 	followed by a space separated list of the non-alpha channel arguments as specified 
 	(identifiers serializing as identifiers, 
-	numbers serializing as numbers, 
-	percentages serializing as percentages, 
+	numbers and percentages serializing as numbers, 
 	angles serializing as canonicalized angles in degrees, 
 	calc() serializing in its simplified form), 
-	followed by " / " and the alpha component as specified 
-	(using the same rules as the color channel arguments) 
-	if an alpha component is present, 
+	followed (if the alpha component is non-unity) 
+	by " / " and the alpha component as specified 
+	(using the same rules as the color channel arguments, but clamped) 
 	followed by ")".
 
 2. For ''hwb()'', ''lab()'', ''lch()'', ''oklab()'', ''oklch()''
@@ -3259,7 +3258,7 @@ The serialization of the declared value of a relative color is:
 	followed by the <a href="#serial-origin-color">serialization of the origin color</a> 
 	using the rules for serializing nested origin colors, 
 	followed by a single space, 
-	followed by a space separated list of the non-alpha channel arguments as specified 
+	<!-- followed by a space separated list of the non-alpha channel arguments as specified 
 	(identifiers serializing as identifiers, 
 	numbers serializing as numbers, 
 	percentages serializing as percentages, 
@@ -3268,6 +3267,15 @@ The serialization of the declared value of a relative color is:
 	followed by " / " and the alpha component as specified 
 	(using the same rules as the color channel arguments) 
 	if an alpha component is present, 
+	followed by ")". -->
+	followed by a space separated list of the non-alpha channel arguments as specified 
+	(identifiers serializing as identifiers, 
+	numbers and percentages serializing as numbers, 
+	angles serializing as canonicalized angles in degrees, 
+	calc() serializing in its simplified form), 
+	followed (if the alpha component is non-unity) 
+	by " / " and the alpha component as specified 
+	(using the same rules as the color channel arguments, but clamped) 
 	followed by ")".
 
 3. For ''color()''
@@ -3279,15 +3287,14 @@ The serialization of the declared value of a relative color is:
 	followed by the canonical colorspace ("xyz-d65" for "xyz") 
 	in all-lowercase, 
 	followed by a single space, 
-	followed by space separated list of the non-alpha channel arguments as specified 
+	followed by a space separated list of the non-alpha channel arguments as specified 
 	(identifiers serializing as identifiers, 
-	numbers serializing as numbers, 
-	percentages serializing as percentages, 
+	numbers and percentages serializing as numbers, 
 	angles serializing as canonicalized angles in degrees, 
 	calc() serializing in its simplified form), 
-	followed by " / " and the alpha component as specified 
-	(using the same rules as the color channel arguments) 
-	if an alpha component is present, 
+	followed (if the alpha component is non-unity) 
+	by " / " and the alpha component as specified 
+	(using the same rules as the color channel arguments, but clamped) 
 	followed by ")".