PICTURE SOURCES: 

BACKGROUND WALLPAPER: 

PICTURE 1: Anton Darius at Unsplash.com: 

https://unsplash.com/photos/IuQKQxZs-TA

PICTURE 2: Alexandre Debieve at Unsplash.com: 

https://unsplash.com/photos/FO7JIlwjOtU

PICTURE 3: Thomas Galler at Unsplash.com: 

https://unsplash.com/photos/q5TF6n5Kjlo

PICTURE 4: Anas Alshanti at Unsplash.com: 

https://unsplash.com/photos/feXpdV001o4

PICTURE 5: J. Balla Photography at Unsplash.com: 

https://unsplash.com/photos/6wmFPgnd__Q

PICTURE 6: Shahadat Rahman at Unsplash.com: 

https://unsplash.com/photos/BfrQnKBulYQ

LICENSE: THE ONLY USED LICSENSES ARE CCO; UNSPLASH LICENSE; PIXABAY LICENSE; PEXELS LICENSE OR THE PERMISSION OF THE CREATOR