Dead/Defeated Status Icon
It's not a major issue, but the lack of a Dead/Defeated Status Icon that can be turned on or off using Token Status Icons can make it difficult in some scenarios to revive a linked actor who was defeated in initiative, or try to simulate an area with a previous encounter and some already defeated opponents/allies. Currently, the only way to add the Dead/Defeated Icon is to load tokens into the Combat Tracker and list them as defeated, but there seems not to be a way to undo this once it's done.
Solution should be simple. Foundry by default has a Dead/Defeated Status Icon, so just including the Core Icon(s) along with the Custom System Icons would provide this feature.