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Icons on mac

  1. Crop square image file from photo or from scratch using a picture editor e.g. GIMP
  2. Open up Icon Composer (Comes with xcode, /Developer/Applications/Utilities)
  3. Drag and drop the image file onto Icon Composer
  4. Save the file (say 'myicon.icns')
  5. Open myicon.icns in preview
  6. Copy the image
  7. Select the folder/file whose icon you want to change
  8. Right click and 'get info'
  9. Click and highlight the small icon at the top left (just above 'spotlight comments')
  10. 'Paste'
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