Angelic Burrito,
poisonous_water_cooler.lua
On Line2:
objectCategories:registerNew({
id = "poison",
icon = "tab_poison",
iconActive = "tab_poison",
display = _T("OBJECT_CATEGORY_POISON", "Poison") -- the _T call is a shortcut to translation.get
})
its works for me

Forgot to say: tried on both an already-existing save and a new one (both of the "Introduction" scenario); the only other mod is "Real Manufacturer's and Platforms"

Hey, I know this is an example mod so maybe it doesn't really matter but I'm getting a crash on mouse-over of the poison icon of the new object category tab.
Here's the traceback:
75249:1912: attempt to index local 'struct' (a nil value)

75249:1912: in function 'allocateSprite'
5841:197: in function 'updateSprites'
75249:2232: in function '_updateSprites'
75249:354: in function 'drawPanels'
75249:247: in function '_performDrawing'
75249:214: in function 'performDrawing'
3963:57: in function 'draw'
321:14: in function 'draw'
4254:141: in function 'draw'
[C]: in function 'xpcall'

10/10 would give to my entire family

lmao. damn funny idea

These example mods are funny