Import your icons into Photoshop
If you've ever wanted to edit or customize an Application icon in Photoshop, creativebits has a nice tutorial that shows how easy it is to import your icons into Photoshop as a PSD file. Basically, the trick is to open the application's icon in Preview (as was pointed out in the comments, you can most easily do this just by copying it in the Finder and selecting "New from Clipboard" in Preview's file menu), then save it in Photoshop (PSD) format. Now you can open it in Photoshop and get access to the image for editing, including the alpha channel. Once you get that far you may want to check out the nice Photoshop icon tutorial we mentioned back in February.
[via uneasysilence]
