Imrovements to properties documentation

Is your feature request related to a problem? Please describe.
There are things that needs to be improved into documentation of properties around the default values if the property is not specified.
Example 1:

I cannot understand what is the default value of this property. Is it true or it is false. Can also the default to be null? Or may be the default depends on how other properties are configured. It will help a lot at the end of this description we have something simple as Default: true.

Example 2:

Also unclear if default value is something generic as en-US or null.

Such examples we can find on other properties.

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Additional context
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