[css-fonts-4] Defined that if there are multiple @font-palette-values rules, the last one wins #12981

Author: svgeesus

css-fonts-4/Overview.bs

@@ -7682,6 +7682,9 @@ User-defined font color palettes: The ''@font-palette-values'' rule</h3>
 
 	The ''@font-palette-values'' rule accepts the descriptors defined in this specification.
 
+	If multiple ''@font-palette-values'' rules are defined with the same name,
+	the last one in document order wins, and all preceding ones are ignored.
+
 	<div class="example" id="ex-bixa-palette">
 		Modify Bixa Color's color palette.