[css-color] bikeshed linking fixes, hopefully

Author: svgeesus

css-color-4/Overview.bs

@@ -4503,7 +4503,7 @@ Interpolating with alpha</h3>
 		[32.102% 53.61 337.7].
 
 		The midpoint of linearly interpolating these,
-		along the shorter hue arc (the default) would be
+		along the ''shorter'' hue arc (the default) would be
 		[29.4365% 40.563 31.82]
 		which, with an alpha value of 0.5,
 		is <span class="swatch" style="--color: rgb(83.918% 44.583% 0% / 0.5)"></span>  lch(58.873% 81.126 63.64) / 0.5)
@@ -4535,7 +4535,7 @@ Hue interpolation</h3>
 	then for interpolation, NaN is replaced
 	by the value 0 for both angles.
 
-	<h4 id="hue-shorter">''shorter''</h4>
+	<h4 id="hue-shorter"><dfn export>shorter</dfn></h4>
 
 	Angles are adjusted so that |θ₂ - θ₁| ∈ [-180, 180]. In pseudo-Javascript:
 		<pre>
@@ -4547,7 +4547,7 @@ Hue interpolation</h3>
 		}
 		</pre>
 
-	<h4 id="hue-longer">''longer''</h4>
+	<h4 id="hue-longer"><dfn export>longer</dfn></h4>
 
 	Angles are adjusted so that |θ₂ - θ₁| ∈ {0, [180, 360)}. In pseudo-Javascript:
 		<pre>
@@ -4559,7 +4559,7 @@ Hue interpolation</h3>
 		}
 		</pre>
 
-	<h4 id="hue-increasing">''increasing''</h4>
+	<h4 id="hue-increasing"><dfn export>increasing</dfn></h4>
 
 	Angles are adjusted so that |θ₂ - θ₁| ∈ [0, 360). In pseudo-Javascript:
 		<pre>
@@ -4568,7 +4568,7 @@ Hue interpolation</h3>
 		}
 		</pre>
 
-	<h4 id="hue-decreasing">''decreasing''</h4>
+	<h4 id="hue-decreasing"><dfn export>decreasing</dfn></h4>
 
 	Angles are adjusted so that |θ₂ - θ₁| ∈ (-360, 0]. In pseudo-Javascript:
 		<pre>
@@ -4577,7 +4577,7 @@ Hue interpolation</h3>
 		}
 		</pre>
 
-	<h4 id="hue-specified">''specified''</h4>
+	<h4 id="hue-specified"><dfn export>specified</dfn></h4>
 
 	No fixup is performed. Angles are interpolated in the same way as every other component.
 

css-color-5/Overview.bs

@@ -126,7 +126,7 @@ Mixing colors: the ''color-mix()'' function {#color-mix}
 
 <pre class='prod'>
 	<dfn>color-mix()</dfn> = color-mix( in <<color-space>> , [ <<color>> && <<percentage [0,100]>>? ]#{2} <<hue-adjuster>>?)
-	<dfn>&lt;hue-adjuster></dfn> = shorter | longer | increasing | decreasing | specified
+	<dfn>&lt;hue-adjuster></dfn> = ''shorter'' | ''longer'' | ''increasing'' | ''decreasing'' | ''specified''
 
 </pre>
 
@@ -180,7 +180,17 @@ After normalizing both percentages, the result is produced via the following alg
 	If the specified color space has a smaller gamut
 	than the one in which the color to be adjusted is specified,
 	gamut mapping will occur.
-2. Colors are then <a href="../css-color-4/#interpolation">interpolated in the 		specified color space</a>.
+2. Colors are then interpolated in the 	specified color space,
+	as described in [[css-color-4#interpolation]]. If the specified color space is a ''cylindrical-polar-color'' space,
+	then the <<hue-adjuster>> controls the
+	interpolation of hue, as described in
+	[[css-color-4#hue-interpolation]].
+	If no <<hue-adjuster>> is specified, it is as if
+	''shorter'' had been specified.
+	If the specified colorspace is a
+	''rectangular-orthogonal-color'' space,
+	then specifying a <<hue-adjuster>> is not an error,
+	but has no effect.
 3. If an alpha multiplier was produced during percentage normalization,
 	the alpha component of the interpolated result is multiplied
 	by the alpha multiplier.