[css-color-5] typo, fogra51 not 55

Author: svgeesus

css-color-4/Overview.bs

@@ -3915,20 +3915,21 @@ Also, procedures that rely on knowing the color
 (anti-aliasing, compositing, using the color in a gradient, etc)
 can proceed as normal.
 
-<figure>
+<figure id="fogra51-roundtrip">
+	<!-- See file Macbeth.txt in the workings directory for details. -->
 	<img src="images/macbeth-roundtrip.svg" width=670 height=450>
 	<figcaption>
 		<p>A color checker, used for ensuring color fidelity
 		in the print and photographic industries.
 		Averaged measured Lab values are available for each patch.
 		The rectangles show the Lab values, converted to sRGB.
 		The circles, which are barely visible, show the Lab values,
-		passed through an ICC profile to convert them to CMYK.
+		passed through a FOGRA51 ICC profile to convert them to CMYK.
 		The CMYK values are then passed through the same ICC profile in reverse,
 		to yield new Lab values. These are then converted to sRGB for display.</p>
 		<p>The one patch with a more visible circle (third row, first patch)
 		is because the color is slightly outside the gamut of the
-		FOGRA55 CMYK space used.</p>
+		FOGRA51 CMYK space used.</p>
 		<p>The table below shows, for each patch, the DeltaE 2000 between the original Lab and the Lab value after round-tripping through CMYK. A DeltaE 2000 of 1 or more is just visible.</p>
 		<table class="deltaE">
 			<tr>