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List:       kde-core-devel
Subject:    Re: Color, Icon and Font Settings in KDE4
From:       Gunnar Schmi Dt <gunnar () schmi-dt ! de>
Date:       2007-04-09 11:16:22
Message-ID: 200704091316.28973.gunnar () schmi-dt ! de
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Hello,


On Dienstag, 03. April 2007, Matthew Woehlke wrote:
> [...]

Sorry for my late answer for the following. I somehow must have overread 
this when I first saw your mail.

> Ok, I don't think we should have numbered background roles as on page 3.
> IMO the background roles should be:
> 
> Workspace (currently known as "standard") 
> Selected 
> Window 
> Button 
> Tooltip 
> 
> For cases where a special background color is wanted, we can do two
> things; invert the foreground and background (this means only one text
> color may be used), or use blending to maintain legibility while
> creating new colors. [...]

Swapping (or inverting as you call it) foreground and background colors 
does not work for accessibility reasons. There are people who can only 
read light text on a dark background. Even larger bright areas can dazzle 
them.

As you never know why someone chose a particular combination of colors it 
is best to avoid using foreground colors for a background and vice versa.

Using a blending algorithm for generating additional background colors 
sounds better, but I need to give some thoughts to whether it is a safe 
solution (or whether there may be problems, too, in certain very special 
situations).

As to my understanding kde-core-devel is more suited for the technical 
aspect of the topic I would like to move the discussion about which color 
roles are exactly needed to the mailing list of the HCI workgroup 
(kde-hci@kde.org).

Gunnar Schmi Dt
-- 
Co-maintainer of the KDE Accessibility Project
Maintainer of the kdeaccessibility package
http://accessibility.kde.org/

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