[css-color] Improve visibility of the constraint that shorter is the default he interpolation method

Author: svgeesus

css-color-4/Overview.bs

@@ -4933,6 +4933,10 @@ Color Space for Interpolation</h3>
 	interpolation should take place in,
 	it defaults to Oklab.
 
+	For a <<polar-color-space>> 
+	if the [=hue-interpolation-method=] is not specified,
+	it defaults to [=shorter=].
+
 	However, user agents <em>must</em> handle interpolation
 	between legacy sRGB color formats
 	(hex colors, named colors,
@@ -7896,7 +7900,10 @@ Changes</h2>
 	<a href="https://www.w3.org/TR/2025/CRD-css-color-4-20250424/">Candidate Recommendation Draft of 24 April 2025</a></h3>
 
 <ul>
-	<!-- to 10 April 2026 -->
+	<!-- to 13 April 2026 -->
+	<li>Clarified in the main Color interpolation section that, if the hue interpolaton method is not specified, shorter is the default. (This was already specified in the Hue Interpolation section).
+	(<a href="https://github.com/w3c/csswg-drafts/issues/13788">Issue 13788</a>)
+	</li>
 	 <li>Expanded the concept of analogous components to analogous sets of components, to minimize ''none'' → ''0'' conversions
 		(<a href="https://github.com/w3c/csswg-drafts/issues/10210">Issue 10210</a>)
 	</li>

css-color-5/Overview.bs

@@ -2939,7 +2939,9 @@ or any other color or monochrome output device which has been characterized.
 <h3 id="interpolation-space">
 	Color Space for Interpolation</h3>
 
-	The <<color-interpolation-method>> is extended to allow use of the
+	The <<color-interpolation-method>>,
+	as defined in [[css-color-4#interpolation-space]],
+	is extended to allow use of the
 	<a href="#custom-color">custom color spaces</a>:
 
 	<pre class='prod'>
@@ -3859,6 +3861,10 @@ This specification adds a way to ensure adequate contrast for text whose backgro
 </h3>
 
 <ul>
+	<li>Added a backlink from Color Interpolation in this specification,
+		to the same section in CSS Color 4 where most of this is defined
+		(<a href="https://github.com/w3c/csswg-drafts/issues/13788">Issue 13788</a>)
+	</li>
 	<li>Added a second form of the light-dark() function, 
 		which takes a pair of images rather than a pair of colors
 		(<a href="https://github.com/w3c/csswg-drafts/issues/12513">Issue 12513</a>)