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Multiple Icon Sizes in MacOS X by Carsten Klapp

Broken by MacOS X 10.1

Fixed for Jaguar!

Way back in May of 2001, we posted a mod to allow multiple icon sizes in Mac OS X. The update to 10.1 broke the hack and it was all but forgotten until a reader at MacOS X Hints posted a thread stating the old hack works agin in 10.0.4.

Carsten Klapp, the author of the original modification, went back to the ResEdit resources and tweaked them for Jaguar. The resulting download will once again add multiple icon sizes to the Finder! The original article has been updated.

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Start of original article...

I have discovered an exciting hidden feature of the Mac OS X Finder! Multiple icon sizes are now possible on the Desktop or in a Finder window!

Icons can be displayed any of 5 ways, **even mixing and matching sizes
within the same window**:

• Normal - use the dynamic icon size specified in the Show Info window
• Small - 16x16 icon with filename to the right of icon
• Large - 32x32 icon (Mac OS 9 size)
• Huge - 48x48 icon (NeXT size)
• Thumbnail - 128x128 icon (Mac OS X size)

Requires:

• Mac OS X (retail version or public beta)
• ResEdit or Resorcerer
• QuickConvert (for flipping data/resource forks)
• Prepared Mcmd and MENU resources. (Download)

Instructions:

1. Startup with Mac OS 9.
   
   
2. Make a backup copy of the file "Localized.rsrc" located in: /System/Library/CoreServices/Finder.app/Contents/Resources/English.lproj
   
   
3. Drag "Localized.rsrc" onto "QuickConvert" to prepare the resource fork for editing. (I found I had to move the file out of the Finder.app package before QuickConvert would recognize it -MC)
   
   
   
   
4. Use Resedit or Resorcerer to paste the supplied 'MENU' and 'Mcmd' resources, replacing the existing ones in "Localized.rsrc".
   
   
   
   
5. Drag "Localized.rsrc" onto "QuickConvert" to put the new resource fork
   back into the data fork.
   
   
6. Startup in Mac OS X and enjoy the new "File" menu.