TerminalTextEffects (TTE) is a terminal visual effects engine. TTE can be installed as a system application to produce effects in your terminal, or as a Python library to enable effects within your Python scripts/applications. TTE includes a growing library of built-in effects which showcase the engine's features.
There is a showroom with animated gifs that shows what they all look like: https://chrisbuilds.github.io/terminaltexteffects/showroom/