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Options for default subfigure
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**Option aliases:**

* *Parent* -> *Type*
* *parent* -> *Type*
* *pos* -> *Position*
* *type* -> *Type*
* *width* -> *Width*

**Recognized options:**

*Alignment*: {``'center'``} | :class:`object`
    value of option "Alignment"
*Caption*: {``None``} | :class:`str`
    subfigure caption
*Position*: {``'b'``} | ``'c'`` | ``'t'``
    subfigure vertical alignment
*Type*: {``None``} | :class:`str`
    subfigure type or parent
*Width*: {``0.33``} | :class:`float`
    value of option "Width"