By default, RainPro uses the tilde character ‘~’ as an optional word-break point in wrapped text, so that a word such as ‘Con~trib~ution’ could appear as:

Con-
tribution

or as

Contrib-
ution

or as

Contribution

... depending on the available width. If you require the ‘~’ character as normal text, you could do your own wrapping, or you could switch to a different soft hyphen with:

ch.Set 'SHyphen '@'

or any other suitable character or list of characters.

See also ...
ch.Note – add chart notes