Merge branch 'main' into color-adjust

css-color-5/Overview.bs

@@ -2809,10 +2809,9 @@ or any other color or monochrome output device which has been characterized.
 	or the second image,
 	if the <a>element color scheme</a> is ''dark''.
 
-	The <dfn value for="light-dark()">none</dfn> keyword
-	produces a [=transparent black=] image
-	with no natural size.
-	<span class=note>Equivalent to ''linear-gradient(transparent)''.</span>
+	The <dfn value for="light-dark()">none</dfn> keyword 
+	computes to ''image(transparent)''
+	(a fully transparent image with no natural size).
 
 	<div class="example" id="ex-light-dark-color">
 		For example, to maintain a legible contrast on links,
@@ -2862,6 +2861,12 @@ or any other color or monochrome output device which has been characterized.
 		<pre class="lang-css">
 			background-image: light-dark(url(my-light-image.png), none);
 		</pre>
+
+		This is equivalent to:
+
+		<pre class="lang-css">
+			background-image: light-dark(url(my-light-image.png), image(transparent));
+		<pre>
 	</div>