Curves
Effects modify a letter states (position, rotation, scale, ...) based on a "state curve", which you can assign in the inspector.
As always, curves are a Scriptable Object and clicking on them will show you their preview in the inspector.
Built-in Curves
Sine
Follows the Sine curve (and eases in during appearances)
Linear
Goes linearly from 0 to 1
Hold
Stays at 1, always
Square
Either 1 or -1
Step
Goes from 0 to 1 in four different steps
Bounce
Bounces from 0 to 1
Creating Custom Curves from the inspector
To create a custom curve from the inspector go to Project->Create->Text Animator for Unity and then select "Custom".
You will find an inspector with two curves, both editable at the bottom of the panel.
Curve01 goes from 0 to 1 and decides how Appearances and Disappearances behave
CurveRange goes from -1 to 1 (but ends where it started so that it forms a smooth/seamless loop) and affects Persistent effects
