[css-color-4][editorial] Explicit image widths

Author: svgeesus

css-color-4/Overview.bs

@@ -413,7 +413,7 @@ Value Definitions</h3>
 	like those found in a rainbow.
 
 	<figure id="fig-three-gamuts">
-		<p><img src="images/sRGB-DisplayP3-rec2020-in-Oklab.png" alt=""></p>
+		<p><img src="images/sRGB-DisplayP3-rec2020-in-Oklab.png" alt="" width="1538"></p>
 		<!-- alt text would be identical to figure caption -->
 		<figcaption>
 			A top-down view of three gamuts, plotted in Oklab with the positive a-axis towards the right and the positive b-axis towards the top; looking down the l-axis so white and neutrals are in the center. The largest of the three gamuts is ITU Rec BT.2020; the medium-sized one is Display P3, and the smallest is sRGB. Rendering by Alexey Ardov.
@@ -5493,7 +5493,7 @@ Deviations from Perceptual Uniformity: Hue Curvature</h4>
 	270° to 330°.
 
 	<figure id="fig-cielch-blue-curvature">
-		<img src="images/CIELCH-blue-slice.png" alt="">
+		<img src="images/CIELCH-blue-slice.png" alt="" width="2434">
 		<figcaption>
 			A constant-hue slice of CIE LCH color space,
 			at a hue angle of 301.37°
@@ -5512,7 +5512,7 @@ Deviations from Perceptual Uniformity: Hue Curvature</h4>
 	at all hue angles.
 
 	<figure id="fig-oklch-blue-linearity">
-		<img src="images/OKLCH-blue-slice.png" alt="">
+		<img src="images/OKLCH-blue-slice.png" alt="" width="2485">
 		<figcaption>
 			A constant-hue slice of OKLCh color space,
 			at a hue angle of 264.06°