Include Header Line as Option to Title in Slicers

So i was wondering if there's any way to add the box/lines option that Headers may have on Slicers, on Titles.

Sample figure showing the line i'm talking about.
Besides not looking something cooler, i'm creating a report with easy-to-understand slicers so that the user can adjust.

The lines of the headers makes easier to the user to see what are the fields being sliced on.

Also, i don't think that it is trivial to rename a column condittionally (if it is possible to do so), e.g. if the user has not filled a certain slicer field (since resetting all selections is a option in my report), the text would change from "Value" to something like "Value - Selection Required!".

So, it's basically adding the shape options that headers have to titles.

Thank you!