code: func (t *Text) SetStyle(style tcell.Style) {
  	t.style = style
  	for i := 0; i < len(t.text); i++ {
  		if t.widths[i] != 0 {
  			t.styles[i] = t.style
  		}
  	}
  	t.PostEventWidgetContent(t)
  }
docs: // SetStyle sets the style used.  This applies to every cell in the
  // in the text.