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From "Yusaku Sako (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-5266) Red / green colorblind problem with service status dashboard, etc.
Date Tue, 01 Apr 2014 01:58:18 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-5266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13956010#comment-13956010
] 

Yusaku Sako commented on AMBARI-5266:
-------------------------------------

+1 for the patch.

> Red / green colorblind problem with service status dashboard, etc.
> ------------------------------------------------------------------
>
>                 Key: AMBARI-5266
>                 URL: https://issues.apache.org/jira/browse/AMBARI-5266
>             Project: Ambari
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 1.5.0
>            Reporter: Matt Foley
>            Assignee: Xi Wang
>             Fix For: 1.5.1
>
>         Attachments: AMBARI-5266.patch, AMBARI-5266.patch, Screen Shot 2014-03-31 at
3.30.53 PM.png, Screen Shot 2014-03-31 at 3.31.05 PM.png, Screen Shot 2014-03-31 at 3.31.26
PM.png, Screen Shot 2014-03-31 at 3.32.15 PM.png, Screen Shot 2014-03-31 at 3.32.27 PM.png
>
>
> The following request was made by a colleague who did not wish to publicize his colorblindness:
> "I am green colorblind and the red/green service status dots look identical to me (especially
on my Dell monitor, laptop is a little better though). I am sure that other people are affected
by this as well.  This may seem like a trivial request, but actually is quite inconvenient
because to see service statuses, I now have to go down the list and click on each service
individually."
> Evidently the particular shades of red and green currently used have very similar luminosity.
 
> Solutions are readily available in the Accessibility literature, including
> * changing palette to use red/green with significantly contrasting luminosity (This is
a quick-fix, especially if the colors are palettized.)
> * adding text cue along with the color indicator
> * using a left/right or other non-color graphical cue along with the color
> * etc.
> A useful website for understanding the problem in the context of web pages is:
> * http://msdn.microsoft.com/en-us/library/bb263953(v=vs.85).aspx
> Please consider at least adapting the palette in the next release.  Thanks.



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