The Icons:

  • Red chess: King, Queen, Bishop, Knight, Rook, Pawn
  • Blue chess: King, Queen, Bishop, Knight, Rook, Pawn
  • Grey chess: King, Queen, Bishop, Knight, Rook, Pawn
  • Grey, generic: Clean (red/orange/green light), Removable (red/orange/green light), Thunderbolt, USB
  • Extras: Time Machine

The images are taken from the free version of FontAwesome and are used under a CC BY 4.0 license.