No system variable for underline?

Unless I am mistaken, I could not find a system variable that tells me if an underline is active and what kind of underline it is.
Which is a bit weird as in the old IF spec the underline field has an 'active' setting, so XPP knows what underline is in use.

If indeed it would appear that there is in fact no system variable for the underline style (up to you to proof me wrong) I will open up an new 'idea'
Will keep you informed

(using XPP 9.6.2)

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