Change Blue Tint of Icons in Mac Yosemite

gistfile1.txt

#!/bin/bash

# List of system icons which need to be changed
sys_icons="ApplicationsFolderIcon.icns BurnableFolderIcon.icns \
DesktopFolderIcon.icns DeveloperFolderIcon.icns DocumentsFolderIcon.icns \
DownloadsFolder.icns GenericFolderIcon.icns GenericSharepoint.icns \
GroupFolder.icns LibraryFolderIcon.icns MovieFolderIcon.icns \
MusicFolderIcon.icns OpenFolderIcon.icns PicturesFolderIcon.icns \
PublicFolderIcon.icns ServerApplicationsFolderIcon.icns \
SitesFolderIcon.icns SystemFolderIcon.icns UsersFolderIcon.icns \
UtilitiesFolder.icns"

# Back up CoreTypes.bundle just in case and copy the icons to ~/folder_icons
cp -r /System/Library/CoreServices/CoreTypes.bundle ~/CoreTypes_BACKUP.bundle
mkdir ~/folder_icons
cd /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources
cp $sys_icons ~/folder_icons

# List of dropbox icons which need to be changed
dropbox_icons="DropboxFolderIconYosemite.icns DropboxAppFolderIconYosemite.icns \
DropboxPublicFolderIconYosemite.icns DropboxReadOnlySharedFolderIconYosemite.icns"

# Check if yosemite-ready dropbox is installed and copy the dropbox icons to ~/folder_icons
if [ -f "/Applications/Dropbox.app/Contents/Resources/DropboxFolderIconYosemite.icns" ]; then
    cd /Applications/Dropbox.app/Contents/Resources
    cp $dropbox_icons ~/folder_icons
fi

cd ~/folder_icons

# Change ownership of icns files to user
sudo chown `whoami` $sys_icons $dropbox_icons &> /dev/null

# Convert icns files to "iconset" folders containing png files
for icon in *.icns; do iconutil -c iconset "$icon"; done

# Use imagemagick to adjust saturation (-20%) and hue (+2%)
for icon in ./**/*.png; do mogrify -modulate 100,80,102 "$icon"; done

# Convert "iconset" folders back to icns files
for icon in *.iconset; do iconutil -c icns "$icon"; done

# Copy the modified system and dropbox icons back to their original bundles
sudo cp $sys_icons /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources
if [ -f "DropboxFolderIconYosemite.icns" ]; then
    cp $dropbox_icons /Applications/Dropbox.app/Contents/Resources
fi

# Set owner/group to root/wheel and delete extended attributes
cd /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources
sudo chown root $sys_icons
sudo chgrp wheel $sys_icons
sudo xattr -d com.apple.quarantine $sys_icons &> /dev/null

# Delete icon cache (restart necessary)
sudo find /private/var/folders/ -name com.apple.dock.iconcache -exec rm {} \; &> /dev/null
sudo find /private/var/folders/ -name com.apple.iconservices -exec rm -rf {} \; &> /dev/null

# Remove working directory
rm -rf ~/folder_icons