# css3-color Disposition of Comments

## 2010-10-13

## Abstract

This document outlines the way in which the CSS Working Group addressed the comments submitted during the Last Call period of CSS3 Color.

## Status of this document

During the Last Call period of CSS Color Module Level 3 , a number of comments were received. This document summarizes those comments and describes the ways in which the comments were addressed by the CSS Working Group. Editorial changes have been made in the editors draft.

## Table of Contents

## Comments and resolutions

### Issue 1

Summary
  css3-color should have a useful index or it should be removed
Raised by
  David Baron
URL
  N/A
Proposed Resolution
  improve index
Status
  editorial, spec edited to improve index

### Issue 2

Summary
  restructure TOC
Raised by
  Christolph Päper
URL
  http://lists.w3.org/Archives/Public/www-style/2008Mar/0405.html http://lists.w3.org/Archives/Public/www-style/2008Mar/0443.html http://lists.w3.org/Archives/Public/www-style/2008May/0182.html http://lists.w3.org/Archives/Public/www-style/2008Aug/0013.html http://lists.w3.org/Archives/Public/www-style/2008Aug/0019.html
Reporter's response to resolution
  http://lists.w3.org/Archives/Public/www-style/2008Oct/0229.html
Further discussion
  http://lists.w3.org/Archives/Public/www-style/2008Oct/0230.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0841.html
Proposed Resolution 1
  no change, to preserve section number stability
Proposed Resolution 2
  similar to what is proposed, but moving the gamma correction section (probably modified, per later issue) into the beginning of Color Units, and perhaps putting the units before the values
Status
  resolved to make no change, http://lists.w3.org/Archives/Public/www-style/2008Sep/0169.html

### Issue 3

Summary
  rename sections giving color keywords
Raised by
  various
URL
  http://lists.w3.org/Archives/Public/www-style/2008May/0146.html
Proposed Resolution
  Probably rename, given the confusion this has caused
Status
  draft sections renamed per above URL to “Basic color keywords” and “Extended color keywords”

### Issue 4

Summary
  report of browser bugs from test suite
Raised by
  Paul Tykodi
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jun/0023.html http://lists.w3.org/Archives/Public/www-style/2008Jun/0029.html
Proposed Resolution
  not a spec issue
Status
  not a spec issue

### Issue 5

Summary
  still confused about interaction of opacity and rgba()
Raised by
  Matt Bonner
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jun/0024.html http://lists.w3.org/Archives/Public/www-style/2010Aug/0451.html
Proposed Resolution
  normative reference to SVG 1.1 simple alpha compositing
Status
  spec edited

### Issue 6

Summary
  opacity should only apply to in-flow children, and shouldn't create a stacking context
Raised by
  Andrew Fedoniuk
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0139.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0142.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0145.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0166.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0167.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0168.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0170.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0173.html http://lists.w3.org/Archives/Public/www-style/2009Feb/0244.html http://lists.w3.org/Archives/Public/www-style/2009Feb/0245.html
Note
  same as issue 20 on previous issues list
Proposed Resolution
  no change
Status

### Issue 7

Summary
  ICC features shouldn't be removed
Raised by
  Chris Murphy
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0184.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0189.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0191.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0205.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0208.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0225.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0230.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0241.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0258.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0259.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0278.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0281.html http://lists.w3.org/Archives/Public/www-style/2008Aug/0072.html http://lists.w3.org/Archives/Public/www-style/2008Aug/0269.html http://lists.w3.org/Archives/Public/www-style/2008Aug/0270.html http://lists.w3.org/Archives/Public/www-style/2008Sep/0147.html http://lists.w3.org/Archives/Public/www-style/2008Sep/0148.html
Proposed Resolution
  no change
Status

### Issue 8

Summary
  Gamma correction section is out of date
Raised by
  Chris Murphy
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0185.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0229.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0459.html
Resolution
  remove section (resolved, 2009-11-03 F2F meeting)
Status
  spec edited

### Issue 9

Summary
  opacity relative to multiple ancestors
Raised by
  Marshal Horn
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0409.html
Proposed Resolution
  reject all new features (and not sure what this one means, either)
Status
  no change

### Issue 10

Summary
  presentation of HTML4 keywords and SVG keywords is inconsistent
Raised by
  David Perrell
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0457.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0462.html
Proposed Resolution
  change HTML4 table to look like SVG Table
Status
  spec edited

### Issue 11

Summary
  include HSL values in color tables
Raised by
  David Perrell
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0457.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0462.html
Proposed Resolution
  no change, since they wouldn't be exact matches due to rounding issues, and then there would be ambiguity
Status
  no change

### Issue 12

Summary
  does HSL get mapped to the sRGB color space
Raised by
  David Perrell
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0458.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0461.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0463.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0468.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0472.html
Proposed Resolution 1
  no change (question already answered in spec)
Proposed Resolution 2
  add a statement with “must” in it to state the equivalence as a conformance requirement
Status
  Document edited

### Issue 13

Summary
  remove paragraph about clipping values outside gamut
Raised by
  Chris Murphy
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0459.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0460.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0464.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0465.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0466.html
Proposed Resolution
  gamut clipping clarified to be to device gamut
Status
  spec edited

### Issue 14

Summary
  unnecessary tautology
Raised by
  Dave Singer
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0467.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0469.html
Proposed Resolution
  edit section 3 accordingly to remove redundant or tautological text
Status
  spec edited - no more section 3.1.1

### Issue 15

Summary
  Is HSL full range or video range?
Raised by
  Dave Singer
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0467.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0842.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0845.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0844.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0850.html
Reporter's response to resolution
  http://lists.w3.org/Archives/Public/www-style/2010Sep/0845.html
Proposed Resolution
  no change
Status
  no change

### Issue 16

Summary
  currentColor should not be treated as color:inherit at parse time (and color:inherit should have a space in it)
Raised by
  Krzysztof Maczyński
URL
  http://lists.w3.org/Archives/Public/www-style/2008Jul/0539.html http://lists.w3.org/Archives/Public/www-style/2008Jul/0540.html
Note
  same as issue 17 on previous issues list, due to insufficient editing the previous time around
Proposed Resolution
  do the additional edits to match the previous resolution
Status
  spec edited

### Issue 17

Summary
  long list of editorial comments from XSL FO SG (excluding comment on status section, which is the next issue)
Raised by
  Tony Graham
URL
  http://lists.w3.org/Archives/Public/www-style/2008Sep/0004.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0848.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0849.html
Reporter's response to resolution
  http://lists.w3.org/Archives/Public/www-style/2010Oct/0054.html
Proposed Resolution
  editorial, mostly accepted
Status
  most issues edited. computed value of system colors split out into issue 28, since I think it's wrong. Case consistency of hex not addressed (not worth it). “something similar” comment not addressed (not worth it). Disagree about “lookup table” issue for 4.2.4. Disagree about system colors section nesting issue (don't want to change section numbers).

### Issue 18

Summary
  definition of interoperable should be changed
Raised by
  marbux (in response to Tony Graham)
URL
  http://lists.w3.org/Archives/Public/www-style/2008Sep/0004.html http://lists.w3.org/Archives/Public/www-style/2008Sep/0006.html http://lists.w3.org/Archives/Public/www-style/2008Sep/0169.html http://lists.w3.org/Archives/Public/www-style/2008Sep/0173.html
Proposed Resolution
  no change. ignore legal trolls, or rather, escalate them to W3C legal (which Daniel has done per http://lists.w3.org/Archives/Public/www-style/2008Sep/0173.html) and let them sort it out. in the mean while, proceed with business as usual.
Status
  no change.

### Issue 19

Summary
  statement about advantages of HSL to RGB should not pretend to be exhaustive
Raised by
  Dave Singer
URL
  private email to dbaron, 2008-07-28
Proposed Resolution
  editorial, edit to add “Some” before “advantages”.
Status
  spec edited

### Issue 20

Summary
  need to define deprecated in a way that still requires UAs to support them (and thus need conformance requirements!)
Raised by
  Rich Schwerdtfeger
URL
  minutes of CSS meeting, 2008-10-20, morning session: http://lists.w3.org/Archives/Public/www-style/2008Nov/0023.html
Proposed resolution
  no edit. existing definition section references CSS 2.1 definitions which defines deprecated that way.
Status
  no edit needed.

### Issue 21

Summary
  note pointing to appearance property should link to it
Raised by
  Steve Zilles
URL
  minutes of CSS meeting, 2008-10-20, morning session: http://lists.w3.org/Archives/Public/www-style/2008Nov/0023.html
Proposed Resolution
  do so
Status
  spec edited

### Issue 22

Summary
  don't deprecate system colors
Raised by
  Krzysztof Maczyński
URL
  http://lists.w3.org/Archives/Public/www-style/2009Mar/0097.html http://lists.w3.org/Archives/Public/www-style/2009Mar/0106.html
Proposed Resolution
  editorial feedback accepted. request to not deprecate rejected.
Status
  spec edited to re-use some of the “If you want to emulate ” wording suggested in http://lists.w3.org/Archives/Public/www-style/2009Mar/0106.html

### Issue 23

Summary
  Accept angle units and allow omission of % units in hsl()
Raised by
  Ludger Buenger
URL
  http://lists.w3.org/Archives/Public/www-style/2009Jul/0154.html http://lists.w3.org/Archives/Public/www-style/2009Jul/0155.html http://lists.w3.org/Archives/Public/www-style/2009Jul/0156.html
Proposed resolution
  no change

### Issue 24

Summary
  Mac OS X changing gamma, recommendations obsolete
Raised by
  Chris Murphy
URL
  http://lists.w3.org/Archives/Public/www-style/2009Jul/0171.html http://lists.w3.org/Archives/Public/www-style/2009Oct/0189.html http://lists.w3.org/Archives/Public/www-style/2009Oct/0190.html http://lists.w3.org/Archives/Public/www-style/2009Oct/0191.html http://lists.w3.org/Archives/Public/www-style/2009Oct/0215.html
Resolution
  section already removed to resolve issue 8
Status
  spec edited

### Issue 25

Summary
  case of currentColor is odd
Raised by
  David Perrell
URL
  http://lists.w3.org/Archives/Public/www-style/2009Aug/0313.html http://lists.w3.org/Archives/Public/www-style/2009Aug/0314.html http://lists.w3.org/Archives/Public/www-style/2009Aug/0341.html http://lists.w3.org/Archives/Public/www-style/2009Aug/0342.html http://lists.w3.org/Archives/Public/www-style/2009Aug/0355.html http://lists.w3.org/Archives/Public/www-style/2009Aug/0384.html
Proposed Resolution
  no change

### Issue 26

Summary
  add mechanism for migrating to being conformant to the part of the spec that says CSS colors are in sRGB
Raised by
  David Baron, Beth Dakin
URL
  minutes of F2F meeting, 2009-11-03 (have resolution)
Resolution
  updated: do this in CSS4-color instead: “RESOLUTION: re-add a 'color-correction' property with the two values 'default' and 'srgb'”, ”'default': what UA would do if the property weren't specified at all. That can change over time. (E.g., at the moment we (Safari/Webkit) don't do color management at all. But we may do so in the future.)”, ”'srgb': All colors are presumed to be defined in the sRGB color space unless a more precise embedded profile is specified within content data. For images that do have a profile built into their data, that profile is used. For images that do not have a profile, the sRGB profile is used so that the colors in these images can be kept “in synch” with the colors specified in CSS and HTML.”
Status
  no edit in CSS3-color.

### Issue 27

Summary
  should depend on CSS 2.1 instead of css3-syntax and css3-values
Raised by
  David Baron
Proposed Resolution
  normative reference to CSS 2.1, informative to css3-syntax and css3-values
Status
  spec edited

### Issue 28

Summary
  computed value of system colors should be a color, not the keyword itself
Raised by
  David Baron
URL
  http://lists.w3.org/Archives/Public/www-style/2010Sep/0849.html
Reporter's response to resolution
  http://lists.w3.org/Archives/Public/www-style/2010Oct/0053.html
Proposed Resolution
  just remove the note saying otherwise
Status
  spec edited.

### Issue 29

Summary
  “predefined” doesn't make sense in context (used twice)
Raised by
  David Baron
Proposed Resolution
  change to 'color keyword'
Status
  editorial, spec edited

### Issue 30

Summary
  sRGB reference needs to be updated, check other references too
Raised by
  Chris Lilley
Reporters response to resolution
  http://lists.w3.org/Archives/Public/www-style/2010Oct/0070.html
Proposed Resolution
  update them. Note: When I (Tantek) last asked Chris Lilley about what should we update the [SRGB] reference to, he said we should use the same reference as the latest SVG.

From http://www.w3.org/TR/SVG/refs.html :

IEC 61966-2-1: 1999: Multimedia systems and equipment — Colour measurement and management — Part 2-1: Colour management — Default RGB colour space — sRGB, International Electrotechnical Commission, 1999. ISBN 2-8318-4989-6 as amended by Amendment A1:2003. Available at http://webstore.iec.ch/webstore/webstore.nsf/artnum/025408 and at http://www.colour.org/tc8-05/Docs/colorspace/61966-2-1.pdf .

Where the first part of the text up to and including “sRGB,” (without the comma) links to: http://www.colour.org/tc8-05/Docs/colorspace/61966-2-1.pdf

Status
  updated the shared bibliography for the CSS specs accordingly.

### Issue 31

Summary
  add CIE color specification to CSS3 color
Raised by
  Alexis Shaw
URL
  http://lists.w3.org/Archives/Public/www-style/2010Sep/0313.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0330.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0341.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0341.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0462.html (then drifted off topic) http://lists.w3.org/Archives/Public/www-style/2010Sep/0853.html
Reporter's response to resolution
  http://lists.w3.org/Archives/Public/www-style/2010Sep/0857.html
Proposed Resolution
  no change for CSS3, consider for later specification
Status
  no change

### Issue 32

Summary
  HSL Tables
Raised by
  Christoph Päper
URL
  http://lists.w3.org/Archives/Public/www-style/2010Sep/0312.html
Reporter's response to resolution
  http://lists.w3.org/Archives/Public/www-style/2010Oct/0076.html
Proposed Resolution
  editorial change made
Status
  edits done

### Issue 33

Summary
  light goldenrod yellow
Raised by
  Christoph Päper
URL
  http://lists.w3.org/Archives/Public/www-style/2010Sep/0312.html http://lists.w3.org/Archives/Public/www-style/2010Oct/0073.html
Reporter's response to resolution
Proposed Resolution
  spec is correct, no change
Status
  no change

### Issue 34

Summary
  transparent
Raised by
  Christoph Päper
URL
  http://lists.w3.org/Archives/Public/www-style/2010Sep/0312.html
Reporter's response to resolution
  http://lists.w3.org/Archives/Public/www-style/2010Oct/0077.html
Proposed Resolution
  no change in CSS3 Color
Status
  no change

### Issue 35

Summary
  CIE colorimetry
Raised by
  Etan Wexler
URL
  http://lists.w3.org/Archives/Public/www-style/2010Sep/0355.html http://lists.w3.org/Archives/Public/www-style/2010Sep/0472.html http://lists.w3.org/Archives/Public/www-style/2010Oct/0071.html
Reporter's response to resolution
  http://lists.w3.org/Archives/Public/www-style/2010Oct/0116.html
Proposed Resolution
  edit references following guidance from Alan Robertson, Chair, CIE TC 1-57
Status
  bibliographic references updated