ArgParseSettings() and special characters

I would like to include a special character within the text for the epilog.

In the documentation for ArgParseSettings, it is mentioned that one can manually control spaces using ‘\ua0’. So, I figured I could used the corresponding unicode for the special character of interest, but ArgParseSettings renders something else.

Then, ArgParseSettings also offers the option to set 'preformatted_epilog=true", hopefully, promising to not mess with it? No luck, either.

How is ArgParse parsing such description and epilog text?
How can I include “á”, for example, into the epilog?