Without getting into the arguments anyone's made above, here's your answer, OP...
You can find basically anything you want to use to customize your mac on the internet. You can install things similar to how it's done on Windows, from wherever you find it. you don't need to use the Mac App store.
You can find basically anything you want to use to customize your mac on the internet. You can install things similar to how it's done on Windows, from wherever you find it. you don't need to use the Mac App store.