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List:       kde-usability
Subject:    Re: [KDE Usability] Review Request: --hard_coded_colors in kalarm
From:       "David Jarvie" <djarvie () kde ! org>
Date:       2009-08-14 8:23:27
Message-ID: 7670ba8412cf870d8eadf8ba19946e0e.squirrel () www ! sensical ! net
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On Thu, August 13, 2009 5:43 pm, Matthew Woehlke wrote:
> David Jarvie wrote:
>> I would be very reluctant to clutter the interface by adding another
>> column.
>> There are after all only 3 statuses, so it won't take a user long to
>> learn what the colours mean
>
> You are assuming here that the user has color vision :-). As I
> understand it, using only color is bed because some users may have total
> color blindness. Rare, sure, but even limited color blindness may make
> it difficult to differentiate based on color, and that's /common/ (IIRC
> 5% or more of the population).

When only 3 colours are needed, even a completely colour blind person
should be able to distinguish between suitably chosen ones - if they
appeared as black, mid grey and light grey.

-- 
David Jarvie.
KDE developer.
KAlarm author & maintainer.
http://www.astrojar.org.uk/kalarm

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