figure 1
Sometimes it may happen when you have a brandnew application and you drop it into the application folder, that the icon is looking like figure 1. The OS X uses a cache to display the icons quickly and it will not be rebuilt on folder change!
You can avoid this by using just a little trick.
Instead of throwing the application icon directly into the application folder, let it fall on the Desktop first. It will be extracted out of the dmg image and will have the correct icon picture instantly. Now drop it into the application folder and it looks correctly.
I am experiencing this with 10.5.6 and I filed it to Apple’s feedback form.
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