Burrows don't show up on Icon Settings

[MagicManICT]

If cave entrance is on icon settings, how come burrows aren't?
They are natures things, not player built. So they should come up right?

[MadNomad]

but they are more like a house because they always have a separate map with their room in it for each burrow (just like houses)
caves have one large map for all cave entrances

but perhaps they could implement an icon for burrows and houses indeed, why not

and this is not a bug, they just didn't add this, the topic should be in C&I