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RE: [css3-background] border-radius color transitions using gradients recommended but undefined

From: Sylvain Galineau <sylvaing@microsoft.com>
Date: Tue, 23 Feb 2010 02:00:02 +0000
To: fantasai <fantasai.lists@inkedblade.net>
CC: Daniel Glazman <daniel.glazman@disruptive-innovations.com>, "www-style@w3.org" <www-style@w3.org>
Message-ID: <045A765940533D4CA4933A4A7E32597E10D19BD4@TK5EX14MBXC111.redmond.corp.microsoft.com>
> From: fantasai [mailto:fantasai.lists@inkedblade.net]
> Sent: Monday, February 22, 2010 5:13 PM
> To: Sylvain Galineau
> Cc: Daniel Glazman; www-style@w3.org
> Subject: Re: [css3-background] border-radius color transitions using
> gradients recommended but undefined
 
> Append to the paragraph:
> 
>    # It is not defined what these transitions look like, but a gradient
>    # is recommended for color transitions that don't involve dotted or
>    # dashed borders.
> 
> the following text:
> 
>    | The start and end color stops should be given by the line segments
>    | connecting the tips of the inner radii with the corresponding tips
>    | of the outer radii, and the halfway point between the start and
> end
>    | colors should align with the transition center defined above.
> Conical
>    | gradients are suggested for gradient color transitions.
> 
> Please let me know if this sufficiently addresses your concern.
> 
It is a step in the right direction in that it at least attempts to suggest an 
interoperable model. Optional, *suggested* behavior is still not something I'm comfortable 
with in a CR feature though. And while suggesting a specific approach is good, this
mailing list also showed people having different opinions as to what it should look like.
I thus increasingly agree we do need to experiment with this and am happy doing so behind our vendor 
prefix until such time that we can agree on a solution that can be specified in a testable manner.

If that means explicitly leaving this to the next level of the module so that we vendors don't opt in 
Authors into our own slightly different ideas of what kind of gradient is best the minute they use 
border-radius and two border colors, that's OK. 

I'd like to hear more about Steve and Peter's concerns from our last telcon on the topic. Arron is 
currently away but I'd also like to hear his thoughts on the testing front.


Received on Tuesday, 23 February 2010 02:00:48 GMT

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