Mac icon specifications

[Chris Sheffield]

I'm pretty sure the 512 size at least is only supported under Leopard.  
Not sure about the 256 size. I'm running Leopard, but this app will  
have to run on 10.3 and up. So maybe we should simply stick with the  
128 size?


On Aug 20, 2008, at 10:42 AM, J. Landman Gay wrote:

> Chris Sheffield wrote:
>
>> when I open the icns file in Icon Composer (looks like a great tool  
>> btw) only the 128x128 size and below load into the image wells.  
>> There's not 256 or 512 size, even though these display in Preview.
>
> This is a limitation in Icon Composer, which only offers a few basic  
> sizes. 128 pixels is the largest it allows. The Finder will scale  
> the icon if necessary, but 128 is the largest size that Icon  
> Composer will save in the icns file. It's limitations have never had  
> any ill effects in my icon files though, the Finder works fine with  
> 128 px.
>
> Now that I think about it, I wonder if having huge icon sizes in the  
> icns file is what's messing up everything. I've never created a Mac  
> icon with a stored image larger than 128. Maybe just the existence  
> of extra images gives the Finder a heart attack?
>
> -- 
> Jacqueline Landman Gay         |     jacque at hyperactivesw.com
> HyperActive Software           |     http://www.hyperactivesw.com
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--
Chris Sheffield
Read Naturally, Inc.
www.readnaturally.com