Changing Mac app icons using the built-in method macOS allows you to change an app's icon manually, but it has one frustrating drawback. Getting started, however, is easy.

Click-and-drag this file onto the tiny app icon in the Get Info window. Enter your Mac's password when prompted and click on OK. You may have to quit the app and relaunch it to apply the new icon.

Give your Mac's dock a fresh look.First, download or create an alternate icon, then open Finder and go to the Applications folder in the left pane. Select any app and press Command-I to open an ...