How to make icons for your iOS app quick and dirty

Step 1: install imagemagick

Step 2: make one big png pic that is 1024x1024 in size and save it as icon.png

Step 3: run this zsh script from directory where you saved icon.png

lw=(76 60 40 29 20 167 152 120 80 58 87 180)

for i in $lw; do
convert icon.png -resize $ix$i icon$i.png
done

Now all you have to do is to drag them over to XCode