How to horizontally center a wrapped label with ui.put method?

[EduBic]

``Hello

I have this strange behavior when a label has long words and little horizontal space. The widget correctly create multiline for make the full text readable but it justify the first line (see image).

In the image the words "Complete Lines" are spread to fill the width of the rect.
Here the code that I use to render the Label inside the rect (tag_window_rect, the cyan rect in the image)
while tag.text is equal to "Complete Lines Chilldown".

let widget = Label::new(&tag.text);
ui.put(tag_window_rect, widget);

Thanks