setting('model_colour2', '#CB3030', str, 'preference', 'hidden').setLabel(_('Model colour (2)'), _('Display color for second extruder'))
setting('model_colour3', '#DDD93C', str, 'preference', 'hidden').setLabel(_('Model colour (3)'), _('Display color for third extruder'))
setting('model_colour4', '#4550D3', str, 'preference', 'hidden').setLabel(_('Model colour (4)'), _('Display color for forth extruder'))
-setting('printing_window', 'Basic', ['Basic'], 'preference', 'hidden').setLabel('Printing window type')
+setting('printing_window', 'Basic', ['Basic'], 'preference', 'hidden').setLabel(_('Printing window type'), _('Select the interface used for USB printing.'))
setting('window_maximized', 'True', bool, 'preference', 'hidden')
setting('window_pos_x', '-1', float, 'preference', 'hidden')