[css-color] inline issues

Author: svgeesus

css-color/Overview.bs

@@ -1584,16 +1584,19 @@ Device-independent Colors: Lab and LCH</h2>
 
 	The first argument specifies the CIE Lightness, the second argument is a and the third is b.
 	L is constrained to the range [0, 100] while a and b are signed values and 
-	theoretically unbounded but in practice do not exceed ±160.
+	theoretically unbounded (but in practice do not exceed ±160).
 
 	<pre class='prod'>
 	<dfn>lch()</dfn> = lch( <<number>> , <<number>> , <<number>> )
 	</pre>
 
 	The first argument specifies the CIE Lightness, the second argument is C and the third is H.
-	L is constrained to the range [0, 100]. C is an unsigned number while H is constrained 
+	L is constrained to the range [0, 100]. C is an unsigned number, while H is constrained 
 	to the range [0, 360).
-	<!-- todo, add handling for out of range numbers. Clip L, wrap H? -->
+	
+		<p class="issue">Need to define handling for out of range numbers. 
+			Clip L, wrap H? Have also seen L up to 400, specifically 
+			 for high dynamic range situations.</p>
 
 <h3 id='rgb-to-lab'>
 Converting sRGB colors to Lab colors</h3>
@@ -1609,6 +1612,9 @@ but the first step are linear calculations and can be combined.</p>
 	<li>Convert D50-adapted XYZ to Lab
 </ol>
 
+<p class="issue">There is sample JavaScript code in <a href="conversions.js">conversions.js</a>
+to do these conversions. Is that sufficient to document the steps needed?</p>
+
 <h3 id='lab-to-rgb'>
 Converting Lab colors to sRGB  colors</h3>
 
@@ -1652,8 +1658,8 @@ When the measured physical characteristics (such as the chromaticities of the
 primary colors it uses, or the colors produced in response to a given set of inputs) 
 of a color space or a color-producing device are known, it is said to be <em>characterised</em>. 
 This characterization information is stored in a <em>profile</em>. The most common type of
-color profile is defined by the International Color Consortium (ICC). 
-<!-- insert ref. ICC 4.2 specification? -->
+color profile is defined by the International Color Consortium (ICC) [[!ICC]]. 
+
 
 If in addition adjustments have 
 been made so that a device meets calibration targets such as white point, neutrality of greys, 
@@ -1664,10 +1670,11 @@ calibrated CMYK printer, or an RGB colorspace (such as ProPhoto <!-- ref -->,
 <!-- would be good to mention AdobeRGB 1998 here too, need to check trademark and copyright issues first -->
  widely used by
 photographers), or any other color or monochrome output defice which has been characterized. 
-In addition, for conveninnce, CSS provides two predefined RGB color spaces - DCI P3, which is a 
-wide gamut space typical of current wide-gamut monitors, and Rec.2020 which is a ultra-wide 
+In addition, for conveninnce, CSS provides two predefined RGB color spaces - DCI P3 [[!DCI-P3]], 
+which is a wide gamut space typical of current wide-gamut monitors, and 
+Rec.2020 [[[!Rec.2020]] which is a ultra-wide 
 gamut space capable of representing almost all visible real-world colors. Both are broadcast industry standards.
-<!-- refs. -->
+
 
 <div class='example'>
 	This example specifies four profiled colors: for a standard CMYK press, for a wide-gamut 
@@ -1699,7 +1706,7 @@ The color function takes an indentifier as the first parameter, followed by as m
 numerical parameters as are needed (three for an RGB colorspace, four for CMYK, 
 one for greyscale, and so on). The identifier is either one of the predefined spaces 
 (<i>P3</i> or <i>Rec2020</i>) or the name of a profile.
-<!-- quoted strings? or unquoted? -->
+
 
 	<pre class='prod'>
 		<dfn>color()</dfn> = color( <<ident>> , <<number>>+ )
@@ -1725,6 +1732,11 @@ The DCI P3 [[!DCI-P3]] colorspace has the following characteristics:
 	<tr><th>Transfer function</th><td>1/2.6</td></tr>
 </table>
 
+<p class="issue">The defining spec for DCI-P3 is not freely available. It costs USD 240.
+	There is a Wikipedia article, which is non-authoritative and of unknown accuracy 
+	(particularly for the transfer function and viewing conditions).
+</p>
+
 The ITU Rec.2020 [[!Rec.2020]] 
 	colorspace has the following characteristics: