All  dialogs support the following general options:
--title=titleSpecifies the title of a dialog.--window-icon=icon_pathSpecifies the icon that is displayed in the window frame of the dialog. There are
4 stock icons also available by providing the following keywords - 'info', 'warning', 'question' and
'error'.
--width=widthSpecifies the width of the dialog.--height=heightSpecifies the height of the dialog.
