On Jan 6, 2011, at 5:38 PM, BareFeetWare wrote:

> On 07/01/2011, at 3:04 AM, Matt Neuburg wrote:
> 
>> GraphicConverter doesn't really have the cojones to do what you need done. 
>> You want something that can use e.g. the greyness of each pixel in the 
>> original image to determine the greyness of each pixel in the alpha mask. 
>> Photoshop or GIMP will do this fairly handily. m.
> 
> Thanks for the info.
> 
> Is there no dedicated app suitable for producing PNG images with grey level 
> transparency/alpha, at the various scales needed for iOS apps (as app icons 
> in-app icons)? Does everyone just resort to GIMP and Photoshop, which seems 
> overkill and I'm guessing without templates for icon production?

You should try Opacity.

http://likethought.com/opacity/


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