.. |frontend1|      image:: ../Images/frontend1.png
.. :align: left
.. :border: 0
.. :name: frontend1
.. :vspace: 57

.. |frontend2|      image:: ../Images/frontend2.png
.. :align: left
.. :border: 0
.. :name: frontend2
.. :vspace: 57

.. |backend1|      image:: ../Images/backend1.png
.. :align: left
.. :border: 0
.. :name: backend1
.. :vspace: 57

.. |backend2|      image:: ../Images/manual_html_m45e59382b.png
.. :align: left
.. :border: 0
.. :name: backend2
.. :vspace: 57

.. |pi2|      image:: ../Images/pi2.png
.. :align: left
.. :border: 0
.. :name: pi2
.. :vspace: 57