Changing the WPF text box's blinking cursor style to "office 2019" style?

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C#

XAML

WPF

WPF-Toolkit

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The blink cursor can be seen in Word 2019 and 2010:

If you look closely, you'll see that the cursor in Word 2019 progressively fades and returns.
Also when you press the Enter key, the cursor advances slowly to the next line.

Word 2010:
Click to view the link
Word 2019:
Click to view the link

How do I use this Office 2019 style in the WPF text box?

For example:
Blinking cursor opacity in Word 2010:
Something like this:

duration=0.5
KeyTime 0=100 (opacity)
KeyTime 0.5=0 (opacity)

Blinking cursor opacity in Word 2019: (I want this style)
Something like this:

duration=1
KeyTime 0=100 (opacity)
KeyTime 0.2=80 (opacity)
KeyTime 0.4=60 (opacity)
KeyTime 0.6=40 (opacity)
KeyTime 0.8=20 (opacity)
KeyTime 1.0=0 (opacity)

I also want to move the blinking cursor slowly to the next line by pressing the Enter key.
Please show me the codes with the output (result).
Thanks

What I have tried:

I do not have specific information to try.