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Copyright: 2000, 2008 Bruno Coudoin and others
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Copyright: Timothée Giet, 2015
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saturn.svg (based on https://openclipart.org/download/118801/saturn-dan-gerhards-01.svg )
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netpune.svg (based on https://openclipart.org/download/121843/Neptune-by-Merlin2525.svg )
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arrow.svg (based on https://openclipart.org/detail/113185/ftline_line_arrow_begin-by-dannya )
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crash.svg (based on https://openclipart.org/download/166838/crash.svg )
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updown.svg (based on https://openclipart.org/detail/25007/double-arrow-sign-by-anonymous-25007 )