A large body of research indicates that visual cues help us to better remember information. If you’ve ever needed to view keystrokes on your screen when they are pressed, whether to help you work better or to make a good screencast videos then it’s worth considering Keycastr app for macOS.
Keycastr app for macOS can show keystrokes on your screen as overlays. You can customize the color of the overlay and the text. It is important to note in order for this app to work, KeyCastr must be included in the list of applications with Accessibility API access, under the Security & Privacy system preferences.