[vtkusers] Text with background

[Thiago Franco de Moraes]

Hello all,

I'm using the vtkTextSource with SetBackgroundColor to give me a text
with background, but the vtkTextSource doesn't support text with more
than one line and accents. Is there another text class to use in 2D with
background? I tried other classes like vtkTextMapper, vtkTextActor and
vtkCaptionActor2D, but they don't have a background, at least I don't
know how to do.

Thanks.