broken backwards compatibility

[Boudewijn Rempt]

On Thursday 28 April 2011 Apr, Silvio Heinrich wrote:
> On 04/28/2011 03:17 PM, Cyrille Berger Skott wrote:

> > My opinion is that the default value for "Alpha channel" should be inversed.
> > Especially since it would give the same behaviour as in other applications.
> You cannot easily inverse this behavior. This will inverse the Over 
> (Normal) blending mode, too.
> Then you have for every layer the "Atop" blending mode behavior as default.
> Then we would need to make a special case for the Over mode. That brings 
> only inconsistencies in the system and
> I think it's pretty consistent and logical right now since it's working 
> like the alpha locking just for layer compositing.
> But there is an other possibility... I don't know if there is a version 
> number saved in the *.kra files.
> We could simply make a special case for the *.kra files < 2.4 and invert 
> the alpha flag for all layers that are not using the Over mode
> when loading the file.

Well, consistency with the way other apps work is important too, especially since our users will likely use a range of applications. I'm not sure I understand all implications, though.

-- 
Boudewijn Rempt | http://www.valdyas.org, http://www.krita.org