New 2.1 ElemTypes are not documented.

[Osmo]

As per viewtopic.php?p=689843, some new values were added to ElemType, but they do not appear on the docs https://lua-api.factorio.com/2.1.9/conc ... mType.html

[Shemp]

+1, it's been long enough now that I keep forgetting about them. To save you a click, these new types are:

• airborne-pollutant
• ammo-category
• quality (was possible to get a similar result with type = "signal", signal_type = "quality" before in some contexts)
• shortcut
• space-connection
• surface
• virtual-signal (not the same as "signal", does virtuals only)

[Bilka]

Thanks for the note and the list, I've added these to the docs for 2.1.21.