We wish to thank the following people for the images:
- Fora do Eixo
- RL Johnson
- Daniele Zedda
- Daniele Zedda
- John Steven Fernandez
- xvire1969
- AllansBrain
- Sara Cimino
- soundman1024
- Gagilas
- Symic
- rolands.lakis
- rolands.lakis
- Mike
- alicjacolon
- Michael Sevilla
- Meng To
- FireArt Studio
Flat Design Icons from Pixeden (Vol 1, Vol 2, Vol 3, Vol 4).