See also: IRC log
<ScottM> welcome back jim!
Happy to scribe today :)
<allanj> scribe: erich
JA: Looking ahead to the next 4
meetings for priorities. WCAG is looking to get first public
working draft out in Feb 2017
... Since we're all members of the WCAG wg, feel free to
participate in that also, to explain what we've done here,
etc.
... With the Thanksgiving holiday, we've got this meeting plus
3 others.
<allanj> https://www.w3.org/WAI/GL/low-vision-a11y-tf/wiki/Tracking_Success_Criteria_Progress
JA: It seems our first 4 or 5 SC
are the closest we have to complete
... All the others seem to be part of customization, could be
addressed by other work, taskforces
... Suggesting we focus on the first group, closest to being
done, as priority
<allanj> +1
GS: Agrees with that
<JohnRochford> +1
LC: Also agrees
+1
WD: Agrees provisionally, but Dec 1st deadline limits us\
GS: Let's get these solid and in by the deadline, and then when we have a chance to breath move to the others
SH: Let's buckle down and do it rather than talk about it, get as much to them as we can
WD: Element level customization needs attention
SH: We really must focus, next 2 or 3 meetings are critical
WD agrees
<allanj> https://www.w3.org/WAI/GL/low-vision-a11y-tf/wiki/Informational_Graphic_Contrast_(Minimum)
JA: Did search on some info
graphics that are up there, they are horrid
... If I have my infographic on a color wheel, there is no way
I can make it meet 4.5:1
GS: Pattern, pattern, pattern
JA: I see it, differentiated
pattern is part of it, ok
... How do we feel about it?
AC: One question from TPAC still
needs addressing
... Do we need some way of saying what the graphic must
contrast with?
LC: I agree, Glenda did a great job in the other contrast one, Interactive Elements, could we borrow from that?
<allanj> interactive elements contrast - https://www.w3.org/WAI/GL/low-vision-a11y-tf/wiki/Contrast_%28Minimum%29
GS: I defined it as the visual presentation of important (non-text) information... think that covers it, what do you guys think?
<allanj> http://media02.hongkiat.com/infographic-design-kit/yearly-infographic-elements.jpg
AC: Concerned less on icons, but more on larger info graphics. Realize the patterns help, but SC text is saying it should have a contrast ratio
JA: Just added an infographic
sample from Google
... It's not text, it's a graphic, so you can't get in to
it
AC: There's a good example from the 1948, where does the orange and blue need to contrast against the background, as well as each other
LC: That would be the same for a pie chart too
GS: Need to take a small step back, no need to handle in color contrast, actually color alone causing the problem
SH: If I have pie chart and data table right next to it, it doesn't matter if I can see the colors. No need to overcomplicate
AC: That would just mean we need some caveats, if it's being relied on and there's no redundancy it should have sufficient contrast, or are you saying it's not needed at all?
<Glenda> this is an interesting info graphic I was looking at last night http://sploid.gizmodo.com/the-history-of-all-religions-explained-in-one-fascinati-1643222359
SH: What else do we need to say, do adjacent colors not need to have sufficient contrast because we're already saying we're not relying on color
GS: Why don't we put that as an assumption, but for now think of less is more
JA: This seems to fall in 1.4.5
in WCAG, Images of Text
... Wouldn't infographic example I added already fail?
GS: There are some fun
exceptions
... Not trapping text inside a graphic is very important
JA: What is it in our SC that we need to say something must be done to fix, and have we said that?
<allanj> rrsagent: make minutes
WD: Would like to add a note: There is not a lot of explicit reference in the understanding document as to their application to low vision, things about keyboard use and other things
<alastairc> How about: The visual presentation of graphics that *are relied on to* convey important information have a contrast ratio of at least 4.5:1. (Using the 'important information' to define what needs the contrast.)
WD: May need to look at the
techniques of using color only, embedded images, etc to see if
there is an interpretation
... Need to use some asterisks along here
JA: Would like to focus on getting our language right in the SC
WD: Understood
JA: Does the language we currently have sufficiently convey there are issues needing to be fixed?
GS: Proposes adding a sentence similar to:
<Glenda> Propose adding a similiar sentence like this to “Informational Graphics”: The visual presentation of important (non-text) information in an interactive image has a contrast ratio of at least 4.5:1.
<allanj> ACTION: jim with LVTF to review wcag understanding document and techniques adding implications for Low Vision [recorded in http://www.w3.org/2016/11/03-lvtf-minutes.html#action01]
<trackbot> Created ACTION-85 - With lvtf to review wcag understanding document and techniques adding implications for low vision [on Jim Allan - due 2016-11-10].
LC: We would need to define, since pulling from COGA
<Glenda> Use COGA's important information definition:
<Glenda> important information
<Glenda> 1. information the user may need to complete any action or task including an offline task.
<Glenda> 2. information the user may need to know related to safety, risks, privacy, health or opportunities
AC: Is it the important information that needs to be contrasted with adjacent items?
GS: I would say background, then that follows the pattern for tests
<allanj> https://www.w3.org/WAI/GL/low-vision-a11y-tf/wiki/Informational_Graphic_Contrast_(Minimum)\
<Glenda> COGA definition on important information is located here: https://rawgit.com/w3c/coga/master/extension/index.html#dfn-important-information
<ScottM> +1
<ScottM> +q
<Glenda> +q
SM: Does not think asking people to check all possible color combinations is practical. Would almost say it woudl be easier to indicate to use information conveyed solely through color as the SC, and suggest removing all color to test whether same information can still be conveyed
GS: This is an important gap
which needs to be filled in 2.1
... There's something that's important to convey that is not
text, but as important as text
... We're not talking about differences between that pie slice
and every other pie slice, but can I see the image / important
information
JA: There are different ways of seeing it, we have SC talking about 4.5:1, but all of our techniques (GARBLED)
<ScottM> Anyone else hearing distorted audio?
<Zakim> allanj, you wanted to say focusing on contrast ratio, but techniques list many other ways to fix. but sc says only 4.5:1
AC: Sounds like the hole we're
trying to plug is discerning 'the thing' from it's
surroundings
... Status icons and warning images are more obvious use cases
where we could simplify
... Don't think we need to get in to slices of a pie chart, as
that is covered by the color alone aspect
<Zakim> AWK, you wanted to say that what I hear Glenda talking about is not relying on color alone
<Glenda> I agree with what alastair just said. This is about discerning/seeing an item compared to the immediate surroundings.
AWK: We want to make sure things like status indicator warnings, if text, would be 4.5:1
SC: Covers status and focus in SC I am working on
GS: Covers status and focus in SC I am working on
<alastairc> So add to the SC text something like: "The visual presentation of icons or graphics that convey important information have a contrast ratio of at least 4.5:1 against the background".
<AWK> +1 AC's suggestion
WD: Need to see the line indicating the changes, that's what needs to be 4.5:1
<AWK> But it doesn't cover the use case of colored elements within a graphic
GS: Proposes that we add 'with it's immediate surroundings' to the end of what's currently written
AWK: If I make a line graph with two lines that follow a grid, 1 dashed line and 1 solid line, that might satisfy what Wayne is saying
<Glenda> Here is a timely example: http://projects.fivethirtyeight.com/2016-election-forecast/
<allanj> provided the lines are contrasting enough with the background
<Glenda> scroll to bottom to see line graph
AWK: We're getting in to real specific language that risks not having broad application
JA: Glenda example just posted fails SC as Alastair has posted
<Glenda> The yellow to white is 1.8 to 1
JA: The black text passes, for state names, but the white outlines, not so much
AWK: In state map situation, are
we trying to differentiate between these different colors as
well?
... You can have one color that's touching many others
GS: It's okay, in those outlines,
it's immediate surroundings
... I was actually looking at the line map at the very bottom,
and just looking at the yellow, blue, red, and asking if they
can all be 3:1 since they're all big things
AWK: On that same chart, do the grid lines need to be contrasted also?
GS: Is it important?
AWK: Argument could be made that it is
<allanj> "The visual presentation of icons or graphics that convey important information have a contrast ratio of at least 4.5:1 against the background".
JA: So going back to AC's text,
have we conveyed what we're trying to say
... Does the language address all the things we've talked about
regarding issues we have with the particular image
AWK: no
<Glenda> Propose changing language to 'The visual presentation of important information in icons or graphics has a contrast ratio of at least 4.5:1 against the immediate surrounding background.”
AC: We would almost have to
define which elements are important to understanding
... Need to come up with some frame around discernibility to
understanding
JA: What sort of language do we need to work in to Glenda's proposed language to address discernibility to understanding?
<Glenda> Use COGA's important information definition:
<Glenda> important information
<Glenda> 1. information the user may need to complete any action or task including an offline task.
<JohnRochford> +1 to using COGA definition of important information
JA: And we need to differentiate
this from just the basic color contrast SC
... Trying to see how we separate color alone to other
information
WD: Why does it fail color alone?
JA: It's the yellow line, I can't see it
GS: That's discernment
AC: It's the definition of
graphics that's the problem here
... when we get in to more complex graphics, they need to be
discernible against each other
... If we consider blue line, red line, yellow line as
graphics, one surely fails
<Glenda> Suggest we handle it with examples (like this line chart and state chart for the election)
AC: if it's important to understanding, it should have sufficient contrast against it's background
GS: I propose that SC language suggested is within reason, and be supplemented with additional examples
<allanj> AC isn't this covered under WCAG 1.4.3 Contrast (minimum)
<JohnRochford> Gotta go, folks.
WD: Informational text has a
foreground and a background
... IG is generally trying to depict something, so in the
foreground you can tell what it's depicting against clearly a
background
<AWK> what would we say about: https://finviz.com/map.ashx
<Glenda> each informational element in an information graphic must have a color contrast of 4.5 to 1 with it’s immediate surrounding.
AC: In complex graphics, need to say each complex graphic is made up of parts of a graphic, and if important to understanding, needs to have its contrast
GS: Inside an icon, may have black icon with white smiley face, and that face is immediately surrounding the black, so it works and is simple
WD: What if your background color is dark charcoal
JA: You could see the white
smiley face, but would you know that anything is surrounding
it
... Are we any closer on this one?
WD: If we combine what AC did with GS clarification
<allanj> proposal: each informational element in an information graphic must have a color contrast of 4.5 to 1 with it’s immediate surrounding.
AC: This could use more description, I will tackle for next week
<Glenda> then we will need to add 3 to 1…can we look at my stuff
JA: We keep saying 4.5:1, but 3:1 for larger things
+q
<Glenda> https://www.w3.org/WAI/GL/low-vision-a11y-tf/wiki/Contrast_%28Minimum%29
<shawn> +1 for sticking with 4.5:1 and 3:1 (and 7:1) from WCAG 2.0
GS: Using 4.5:1 as default, and less comfortable but left it also for disabled elements
<laura> 1 for sticking with 4.5:1 and 3:1 (and 7:1) from WCAG 2.0
GS: What is the normal pixel size at 14 pt, I did not measure for that
JA: Alastair will work more on
the description. Seems we have loose agreement on proposed
language, though we did not have a vote
... Thinks description will tease out the size aspects
AWK: I have concerns, very
complicated and talking about many complicated things. Worried
what we come up with may fail dramatically
... We may wind up relegating to AAA because it's not specific
enough about what we need to do
GS: Thinking a lot about it, and
hoping your concerns is a normal concern at the beginning, but
that you would start to become more comfortable with it
... Comes back to questioning, why did you put that in the
graphic, did you want somebody to see it or not?
<Glenda> AWK, would you be willing to go with 3 to 1? and you just put borders around it…
AWK: Concerned about instances where there are many adjacent colors, and if one of those colors does not comply, the whole thing fails the SC
GS: I am not a designer, but I wonder if there are designers in the group
AC: I do work a lot with designers, and feel it's possible to do this, if we narrow and use patterns, labels
<Wayne> q
GS: It's being able to see the line, or to see the label. It's not getting in to interpreting the legend, but just merely it could enter my brain
AWK: agreed
GS: I would be willing to start with 3:1 if concern is high, or we could start with 4.5:1 and back down to 3:1 if needed
AC: If anyone has come across examples (good or bad) please send to me
WD: THink the problem with IG
from a visual point of view, they are important but cannot be
changed programmatically
... there's no way with style that you can fix that
... I like AC's idea of narrowing it, I think we should narrow
this to what we can see right now, with the risk or certainty
we'll leave something out initially
GS: sending data visualizations example with Alastair
<Glenda> Data Visualizations to consider: http://www.informationisbeautiful.net David McCandless
WD: we could look at Edward Tufte (sp?) examples also
GS: Do we want to start with 4.5:1 or simplify and call everything 3:1 to start (would make it much easier, but not sure it's enough)
<alastairc> AC: 3:1 might be ok with a minimum pixel width of 3px (maybe 2?), but with 1px width then 4.5:1 would be needed.
<shawn> [ I wonder if information not conveyed by color alone covers the deisabled issue]
<shawn> [ also with high contrast, it might be too hard to have sufficient change in contrast to be able to tell the difference between enabled and disabled ]
<allanj> Erich: +1 to 3:1 for disabled elements
<allanj> wd: +1 also
AWK: Do we know default contrast ratio of the browser for disabled elements?
GS: no
AWK: Are we comfortable saying you fail if you use the default?
GS: This would be a change from
2.0, since 2.0 lets you get away with the default
... If we're trying to move a11y forward and see the focus,
then it's not good enough, can we bring this forward and have
the possibility of discussing with the browser vendors to make
better
<Zakim> AWK, you wanted to ask what the contrast ratio is for default browser controls when disabled
<laura> +1 to goodwitch
<allanj> jim will create a chart of contrast for form elements and focus rings
<alastairc> default outlines on inputs in Chrome: 2.14:1 for regular, 1.41:1 for disabled! (1px wide)
<shawn> +1 for developing additional material, e.g., adding to existing Understanding docs -- and maybe more supporting material for the new SCs
<alastairc> Quick test: https://alastairc.ac/tests/disabled-elements-test.html
<allanj> thanks!!!
<alastairc> Glenda - can you update the wiki with your contrast SC text? Not sure I saw the right one go past...
rrsagent: make minutes
This is scribe.perl Revision: 1.148 of Date: 2016/10/11 12:55:14 Check for newer version at http://dev.w3.org/cvsweb/~checkout~/2002/scribe/ Guessing input format: RRSAgent_Text_Format (score 1.00) Succeeded: s/it's/its/ No ScribeNick specified. Guessing ScribeNick: erich_manser Found Scribe: erich Present: alastairc Laura Jim Shawn ErichM Scott JohnRochford Glenda Found Date: 03 Nov 2016 Guessing minutes URL: http://www.w3.org/2016/11/03-lvtf-minutes.html People with action items: jim lvtf with WARNING: Input appears to use implicit continuation lines. You may need the "-implicitContinuations" option.[End of scribe.perl diagnostic output]