im not crazy but this commit breaks 90% of the game

code/modules/client/preferences.dm

@@ -529,7 +529,8 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 				if(length(features[marking_type]))
 					dat += "<table>"
 					var/list/markings = features[marking_type]
-					for(var/list/marking_list in markings)
+					var/list/reverse_markings = reverseList(markings)
+					for(var/list/marking_list in reverse_markings)
 						var/marking_index = markings.Find(marking_list) // consider changing loop to go through indexes over lists instead of using Find here
 						var/actual_name = GLOB.bodypart_names[num2text(marking_list[1])] // get the actual name from the bitflag representing the part the marking is applied to
 						var/color_marking_dat = ""
@@ -2446,11 +2447,6 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 							for(var/path in marking_list)
 								var/datum/sprite_accessory/S = marking_list[path]
 								if(istype(S))
-									// gross copypasta here because mam markings arent a subtype of regular markings despite one containing the other ???
-									if(istype(S, /datum/sprite_accessory/body_markings))
-										var/datum/sprite_accessory/body_markings/marking = S
-										if(!(limb_value in marking.covered_limbs))
-											continue
 									if(istype(S, /datum/sprite_accessory/mam_body_markings))
 										var/datum/sprite_accessory/mam_body_markings/marking = S
 										if(!(limb_value in marking.covered_limbs))

code/modules/client/preferences_savefile.dm

@@ -295,11 +295,16 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 			L -= ROLE_SYNDICATE
 		S["be_special"] << L
 
-	if(current_version < 51) // rp markings means markings are now stored as a list
+	if(current_version < 51) // rp markings means markings are now stored as a list, lizard markings now mam like the rest
 		var/marking_type
 		var/species_id = S["species"]
 		var/datum/species/actual_species = GLOB.species_datums[species_id]
-		if(actual_species.mutant_bodyparts["body_markings"] && S["feature_lizard_body_markings"]) marking_type = "feature_lizard_body_markings"
+
+		// convert lizard markings to lizard markings
+		if(species_id == SPECIES_LIZARD && S["feature_lizard_body_markings"])
+			S["feature_mam_body_markings"] = S["feature_lizard_body_markings"]
+
+		// convert mam body marking data to the new rp marking data
 		if(actual_species.mutant_bodyparts["mam_body_markings"] && S["feature_mam_body_markings"]) marking_type = "feature_mam_body_markings"
 
 		if(marking_type)
@@ -670,7 +675,6 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 	S["feature_lizard_horns"]			>> features["horns"]
 	S["feature_lizard_frills"]			>> features["frills"]
 	S["feature_lizard_spines"]			>> features["spines"]
-	features["body_markings"] = safe_json_decode(S["feature_lizard_body_markings"])
 	S["feature_lizard_legs"]			>> features["legs"]
 	S["feature_human_tail"]				>> features["tail_human"]
 	S["feature_human_ears"]				>> features["ears"]
@@ -1037,7 +1041,6 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 	WRITE_FILE(S["feature_human_ears"]				, features["ears"])
 	WRITE_FILE(S["feature_lizard_frills"]			, features["frills"])
 	WRITE_FILE(S["feature_lizard_spines"]			, features["spines"])
-	WRITE_FILE(S["feature_lizard_body_markings"]	, safe_json_encode(features["body_markings"]))
 	WRITE_FILE(S["feature_lizard_legs"]				, features["legs"])
 	WRITE_FILE(S["feature_deco_wings"]				, features["deco_wings"])
 	WRITE_FILE(S["feature_horns_color"]				, features["horns_color"])

code/modules/mob/dead/new_player/sprite_accessories/body_markings.dm

@@ -1,40 +1,3 @@
-/******************************************
-************* Lizard Markings *************
-*******************************************/
-
-/datum/sprite_accessory/body_markings
-	icon = 'icons/mob/mutant_bodyparts.dmi'
-	relevant_layers = list(BODY_ADJ_LAYER)
-	mutant_part_string = "body_markings"
-	var/list/covered_limbs = list(HEAD, CHEST, LEG_LEFT, LEG_RIGHT, ARM_LEFT, ARM_RIGHT)
-
-/datum/sprite_accessory/body_markings/none
-	name = "None"
-	icon_state = "none"
-	relevant_layers = null
-
-/datum/sprite_accessory/body_markings/dtiger
-	name = "Dark Tiger Body"
-	icon_state = "dtiger"
-	gender_specific = 1
-
-/datum/sprite_accessory/body_markings/guilmon
-	name = "Guilmon"
-	icon_state = "guilmon"
-	color_src = MATRIXED
-	icon = 'modular_citadel/icons/mob/markings_notmammals.dmi'
-	matrixed_sections = MATRIX_ALL
-
-/datum/sprite_accessory/body_markings/ltiger
-	name = "Light Tiger Body"
-	icon_state = "ltiger"
-	gender_specific = 1
-
-/datum/sprite_accessory/body_markings/lbelly
-	name = "Light Belly"
-	icon_state = "lbelly"
-	gender_specific = 1
-
 /******************************************
 ************ Furry Markings ***************
 *******************************************/
@@ -227,6 +190,25 @@
 	icon_state = "xeno"
 	icon = 'modular_citadel/icons/mob/markings_notmammals.dmi'
 
+// sticking old lizard markings here for now
+/datum/sprite_accessory/mam_body_markings/dtiger
+	name = "Dark Tiger Body"
+	icon_state = "dtiger"
+
+/datum/sprite_accessory/mam_body_markings/guilmon
+	name = "Guilmon"
+	icon_state = "guilmon"
+	icon = 'modular_citadel/icons/mob/markings_notmammals.dmi'
+	matrixed_sections = MATRIX_ALL
+
+/datum/sprite_accessory/mam_body_markings/ltiger
+	name = "Light Tiger Body"
+	icon_state = "ltiger"
+
+/datum/sprite_accessory/mam_body_markings/lbelly
+	name = "Light Belly"
+	icon_state = "lbelly"
+
 /******************************************
 ************* Insect Markings *************
 *******************************************/

code/modules/mob/living/carbon/human/species_types/lizardpeople.dm

@@ -11,7 +11,7 @@
 	coldmod = 1.5
 	heatmod = 0.67
 	mutant_bodyparts = list("mcolor" = "0F0", "mcolor2" = "0F0", "mcolor3" = "0F0", "tail_lizard" = "Smooth", "mam_snouts" = "Round",
-							 "horns" = "None", "frills" = "None", "spines" = "None", "body_markings" = list(),
+							 "horns" = "None", "frills" = "None", "spines" = "None", "mam_body_markings" = list(),
 							  "legs" = "Digitigrade", "taur" = "None", "deco_wings" = "None")
 	attack_verb = "slash"
 	attack_sound = 'sound/weapons/slash.ogg'