[ Version ( since = "3.0" ) ]
public bool show_text { get; set; }
Sets whether the progress bar will show a text in addition to the bar itself.
The shown text is either the value of the text property or, if that is null, the fraction value, as a percentage.
To make a progress bar that is styled and sized suitably for showing text (even if the actual text is blank), set show_text to true and text to the empty string (not null).