CREDITS

The 'puente' skin for SimpleSAMLphp is based upon 'Login form 18', by Colorlib:
https://colorlib.com/wp/template/login-form-v18/

This skin also uses the following photos which require attribution (all of them 
are bridges you can actually visit in Spain!):

- Puente de Alcántara, by Santiago López-Pastor
https://www.flickr.com/photos/100759833@N05/48270463376

- Puente Románico de Besalú, by  Miquel González Page
https://www.flickr.com/photos/miquelgp/6322804405

- Puente de Triana, by Roberto Carrera
https://www.flickr.com/photos/148122678@N02/41888357262/

- Puente Rande, by Diego Chárlon
https://www.flickr.com/photos/diegocharlon/34275259284/

- Puente Vizcaya en Getxo, by Josep Maria Viñolas Esteva
https://www.flickr.com/photos/jvinolase/30236217155/

- Puente San Pablo de Cuenca, by David Biger
https://www.flickr.com/photos/scope35/42163579952/

- Puente Romano Cangas de Onís, by Oswaldo Rubio
https://www.flickr.com/photos/arrozconnori/14790896321

- Puente nuevo de Ronda, by Judith
https://www.flickr.com/photos/judepics/8511596470

- Puente Romano de Córdoba, by Herbert Frank
https://www.flickr.com/photos/liakadaweb/33766351008/

- Puente Romano de Salamanca, by Susana Montero Pérez
https://www.flickr.com/photos/188030813@N05/50058848421/

The license to these photos, is at minimum CC BY-SA 2.0:

https://creativecommons.org/licenses/by-sa/2.0/