# 1. brew install graphicsmagick
# 2. download the two files in the repo,
# run the script like this (change the file path accordingly):
./bigsur-icns.py /Application/{YOUR_APP}.app/Contents/Resources/{YOUR_APP_ICON_NAME}.icns
# 3. the new icon is at your current working directory named `new-YOUR_APP_ICON_NAME.icns`