> On 22 Mar 2015, at 13:35, Nicolai Hess <[email protected]> wrote:
> 
> 
> 
> 2015-03-22 12:43 GMT+01:00 Nicolai Hess <[email protected] 
> <mailto:[email protected]>>:
> 
> 
> 2015-03-21 15:51 GMT+01:00 Eliot Miranda <[email protected] 
> <mailto:[email protected]>>:
> Why not take the average of alpha in all cases?
> 
> Eliot (phone)
> 
> On Mar 21, 2015, at 6:32 AM, Aliaksei Syrel <[email protected] 
> <mailto:[email protected]>> wrote:
> 
> 
> Or weight the argument by its alpha and don't change the alpha of the 
> receiver:
> Color white - (Color white alpha:0) = Color white
> Color white - (Color white alpha:0.5) = Color gray.
> Color white - (Color white alpha:1.0) = Color black.
> 
> For what do you need the color arithmetic ?
> Maybe there are already other operations defined on Color that you can
> used instead.
> 
> As the arithmetic operations on Color doesn't work (for years?), maybe we 
> should remove
> the operation now, and replace them with a more verbose api
> addRGB/ addRGBA/ subRGBA ....
> 
> nicolai
> 
> 
> Ah, this issue is already closed. That was a rather short discussion. And #/ 
> and #* still don't work
> for colors.
> 
> 
Yes… I think we have a problem that there is no “this is ready for integration” 
check.

We need to get more careful…

        Marcus

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