Adds "Highlights" to the Orbit menu (#19168)

* adds highlights

* comment update

* misc support

* weird spacing begone

* requested changes

code/modules/mob/dead/observer/orbit.dm

@@ -35,11 +35,13 @@
 	var/list/data = list()
 
 	var/list/alive = list()
+	var/list/highlights = list()
 	var/list/antagonists = list()
 	var/list/dead = list()
 	var/list/ghosts = list()
 	var/list/misc = list()
 	var/list/npcs = list()
+	var/length_of_ghosts = length(get_observers())
 
 	var/list/pois = getpois(mobs_only = FALSE, skip_mindless = FALSE)
 	for(var/name in pois)
@@ -72,6 +74,8 @@
 			else if(M.stat == DEAD)
 				dead += list(serialized)
 			else
+				if(length(orbiters) >= 0.2 * length_of_ghosts) // They're important if 20% of observers are watching them
+					highlights += list(serialized)
 				alive += list(serialized)
 
 				var/datum/mind/mind = M.mind
@@ -85,6 +89,7 @@
 					- traitor
 					- mindslaves/vampire thralls
 					- vampire
+					- changelings
 					*/
 					for(var/_A in mind.antag_datums)
 						var/datum/antagonist/A = _A
@@ -134,10 +139,13 @@
 					antag_serialized["antag"] = "Slaughter Demon"
 					antagonists += list(antag_serialized)
 		else
+			if(length(orbiters) >= 0.2 * length_of_ghosts) // If a bunch of people are orbiting an object, like the nuke disk.
+				highlights += list(serialized)
 			misc += list(serialized)
 
-	data["alive"] = alive
 	data["antagonists"] = antagonists
+	data["highlights"] = highlights
+	data["alive"] = alive
 	data["dead"] = dead
 	data["ghosts"] = ghosts
 	data["misc"] = misc