back colored colors coloured colours communicating communication component computer connect connecting connections DSL ethernet gadget internet on-off-switch plug-in power sockets switch switching usb electrical device power button remote control switch off switch on background copy copyspace electrical electricity light off on space switches wall carpet chipped decaying double dull electric grey painted plastic plug skirting socket white wood brick-wall bricks button components cream dirty double-electric-wall-socket dusty flick light-switch power-plugs power-sockets rectangular safety sheltered technology three-pin-socket Getty lightswitch yellow COM connector parallel port emergency