Create Your Own Custom Icons in OS X 10.7.5 or Later [Updated]
I’ve been making my own Mac icons for folders, applications, and a myriad of other uses for well over 20 years now. Back then, I was stuck with 256 (or fewer) colors, a black/white alpha channel, and pretty much had to make them pixel by pixel in ResEdit (uphill... both ways... barefoot... in the snow...). Later on, I wound up registering...