communicate communication danger emergency emergency exit escape exit fire fire escape hazard safety sign warning arrow dangerous directing direction directions door doors doorway exiting green guide help icon indoor instruction leaving life man path protection run running save signs symbol urgency wall logo pictogram jump parachute clear keep metal text architecture construction corkscrew stairs escape route escape way fire exit flight of winding stairs grate grated helical security shape shapes spiral spiral stair spiral staircase stair staircase wentletrap background black blue comic comical concept conceptual cosmic cosmos figure free funny galactic galaxy gate gray grey grunge grungy humor humour image orange photo photograph picture portal red resource round somadjinn space star stars stick stock texture textured urgent white yellow