====== Graphics ======

Free images:
  * https://www.pexels.com/
  * https://pixabay.com/
  * http://www.clipart-library.com
  * http://pngfule.com
  * http://uihere.com
  * http://clipartart.com
  * http://cleanpng.com
  * http://hiclipart.com
  * http://webstockreview.net