[Bug 14072] Screen.alphaDepth missing

https://www.w3.org/Bugs/Public/show_bug.cgi?id=14072

Simon Pieters <simonp@opera.com> changed:

           What    |Removed                     |Added
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                 CC|                            |simonp@opera.com

--- Comment #2 from Simon Pieters <simonp@opera.com> ---
(In reply to comment #0)
> the current definition of Screen.colorDepth excludes alpha channel;
> 
> it is also desirable to expose the alpha depth supported by the screen in
> order to make effective decisions about the use of the opacity property;

Can you elaborate on how one would use this information? Do you have any
examples on pages working around the lack of this feature with e.g. browser
sniffing?

> this is particularly important on television and some handheld devices that
> have limited transparency support

Which devices have limited transparency support? Are they still relevant?

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Received on Tuesday, 14 May 2013 12:12:10 UTC