Re: Themable colors

[Bill Haneman <Bill Haneman Sun COM>]

> Federico Mena Quintero <federico ximian com> writes:
>
> > > Having things like your proposed GTK_PALETTE_RED doesn't make much
> > > sense; if you want a specific color, just use it from your app:
> >    
>
> I am not sure I agree. Red is not just red. It is not uncommon for
> applications to just need a few colors to make something stand out,
> and there may be good reasons for wanting say a red or a green. In
> that case, it makes sense to pick the color out of a palette that
> matches the rest of the desktop.
>  
Applications should _NEVER_ choose a specific color "to make something 
stand out", that is a serious accessibility violation.  Please see 
"GNOME Accessibility Guide for Developers":

http://developer.gnome.org/projects/gap/guide/gad/index.html

The ONLY time that an application should choose a specific color (or 
even a specific value, i.e. 'black' or 'white') is when "red means RED", 
i.e. if the application is a painting application, an image processing 
application, or something similar, where the actual hue and value are 
semantically identified with the element.

Otherwise you should use a gc whose semantics are 'stand out' or 
'error'.  That's what this thread is really about.

- Bill

> Currently your best bet is to just pick a color from the palette in
> the HIG, but I think the palette should depend on the theme.
>
>
> Søren