various lil additions and fixes

- new trait: lipolifier immunity (WIP version, possibly breaks corn oil gains)
- new event: lipolifier vent clog (WIP)
- removed cum vent clog events
- finished working on fatbeam (new sprites)

code/datums/traits/neutral.dm

@@ -127,6 +127,16 @@
 	lose_text = "<span class='notice'>You don't feel as prudish as before.</span>"
 	medical_record_text = "Patient exhibits a special gene that makes them immune to Crocin and Hexacrocin."
 
+/datum/quirk/lipoifier_immunity
+	name = "Lipoifier Immunity"
+	desc = "Your body is mostly immune to widening properties of Lipoifier chemical and its cheaper alternative."
+	mob_trait = TRAIT_LIPOIFIER_IMMUNE
+	value = 0
+	category = CATEGORY_SEXUAL
+	gain_text = "<span class='notice'>You feel less prone to sudden weight gain.</span>"
+	lose_text = "<span class='notice'>You don't feel that resistant to gaining sudden weight anymore.</span>"
+	medical_record_text = "Patient exhibits a special gene that makes them immune to Lipoifier and Corn Oil."
+
 /datum/quirk/assblastusa
 	name = "Buns of Steel"
 	desc = "You've never skipped ass day. With this trait, you are completely immune to all forms of ass slapping and anyone who tries to slap your rock hard ass usually gets a broken hand."
@@ -206,4 +216,4 @@
 	var/mob/living/carbon/human/H = quirk_holder
 	if(H)
 		var/datum/species/species = H.dna.species
-		species.disliked_food = initial(species.disliked_food)
+		species.disliked_food = initial(species.disliked_food)