Usage

Requirements

Install the two dependencies, ImageMagick and Ghostscript.

$ brew install imagemagick
$ brew install ghostscript

Integration

Include the tag_icons.sh script in a scripts/ directory in your iOS app project root. Ensure the file is executable by running $ chmod +x scripts/tag_icons.sh.

Add one build phase before the Copy Bundle Resources phase :

if [ $CONFIGURATION != "Release" ] ; then
    ${SRCROOT}/scripts/tag_icons.sh tag YourApp/Images.xcassets/AppIcon.appiconset
fi

And another build phase at the very end, that restore the original icon files

if [ $CONFIGURATION != "Release" ] ; then
    ${SRCROOT}/scripts/tag_icons.sh cleanup YourApp/Images.xcassets/AppIcon.appiconset
fi