favicon.png is licenced under the Créative Commons Attribution-Share Alike 4.0
International licence

Original picture attribution: © Hans Hillewaert

You are free to:
    Share — copy and redistribute the material in any medium or format Adapt —
    remix, transform, and build upon the material for any purpose, even
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    The licensor cannot revoke these freedoms as long as you follow the license
    terms.

Under the following terms:
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    license, and indicate if changes were made. You may do so in any reasonable
    manner, but not in any way that suggests the licensor endorses you or your
    use.
    ShareAlike — If you remix, transform, or build upon the material, you must
    distribute your contributions under the same license as the original.
    No additional restrictions — You may not apply legal terms or technological
    measures that legally restrict others from doing anything the license
    permits.
