anchor.diff:  	mutant_part_string = "mandibles"
   	color_src = 0
   
  +/datum/sprite_accessory/spider_mandibles/none
  +	name = "None"
  +	icon_state = null
  +	relevant_layers = null
  +
   /datum/sprite_accessory/spider_mandibles/plain
   	name = "Plain"
   	icon_state = "plain"
  
positive.code: 	mutant_part_string = "spinneret"
  	color_src = 0
  
  /datum/sprite_accessory/spider_spinneret/plain
  	name = "Plain"
  	icon_state = "plain"
  
negative.code: 	relevant_layers = list(BODY_BEHIND_LAYER, BODY_ADJ_LAYER, BODY_FRONT_LAYER)
  	mutant_part_string = "spider_legs"
  	color_src = 0
  
  /datum/sprite_accessory/spider_legs/none
  	name = "None"
  	icon_state = null
  	relevant_layers = null
  
  /datum/sprite_accessory/spider_legs/plain
  	name = "Plain"
  