In games, blinking text is one of the more frequently used animations.
It can be (sparingly) used to bring attention to important messages
in a chat log or inventory tooltip, for instance.
This effect accepts the following options:
- `freq`: How fast text blinks (higher is faster).
- `color`: The target color multiplier for blinking.
The default mostly fades out text, but not entirely (for better accessibility).
- `ease`: The easing function exponent to use.
Negative values provide in-out easing, which is why `-2.0` is the default.
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