old_contents: # Standard library imports
  from cStringIO import StringIO
  
  # System library imports.
  from matplotlib.backends.backend_svg import new_figure_manager
  from matplotlib._pylab_helpers import Gcf
  
  # Local imports.
  from backend_payload import add_plot_payload
  
  
  def show():
      """ Deliver a SVG payload.
      """
      figure_manager = Gcf.get_active()
      if figure_manager is not None:
          # Make the background transparent.
          # figure_manager.canvas.figure.patch.set_alpha(0.0)
          # Set the background to white instead so it looks good on black.
          figure_manager.canvas.figure.set_facecolor('white')
          figure_manager.canvas.figure.set_edgecolor('white')
          data = svg_from_canvas(figure_manager.canvas)
          add_plot_payload('svg', data)
  
  def svg_from_canvas(canvas):
      """ Return a string containing the SVG representation of a FigureCanvasSvg.
      """
      string_io = StringIO()
      canvas.print_svg(string_io)
      return string_io.getvalue()
  
new_contents: """Produce SVG versions of active plots for display by the rich Qt frontend.
  """
  #-----------------------------------------------------------------------------
  # Imports
  #-----------------------------------------------------------------------------
  
  # Standard library imports
  from cStringIO import StringIO
  
  # System library imports.
  from matplotlib.backends.backend_svg import new_figure_manager
  from matplotlib._pylab_helpers import Gcf
  
  # Local imports.
  from backend_payload import add_plot_payload
  
  #-----------------------------------------------------------------------------
  # Functions
  #-----------------------------------------------------------------------------
  
  def show():
      """ Deliver a SVG payload.
      """
      for figure_manager in Gcf.get_all_fig_managers():
          # Make the background transparent.
          # figure_manager.canvas.figure.patch.set_alpha(0.0)
          # Set the background to white instead so it looks good on black.
          figure_manager.canvas.figure.set_facecolor('white')
          figure_manager.canvas.figure.set_edgecolor('white')
          data = svg_from_canvas(figure_manager.canvas)
          add_plot_payload('svg', data)
  
  
  def svg_from_canvas(canvas):
      """ Return a string containing the SVG representation of a FigureCanvasSvg.
      """
      string_io = StringIO()
      canvas.print_svg(string_io)
      return string_io.getvalue()
  
subject: Fix svg rich backend to correctly show multiple figures.