Will you be updating the mod for 1.0???
It currently throws an error on load......
The given sprite rectangle (left_top=0x0, right_bottom=64x64) is outside the actual sprite size (left_top=0x0, right_bottom=32x32).
If this is being used as an icon you may need to define the icon_size property.: holiday-artillery/graphics/icons/artillery-shell.png
I could fix it myself, but it's your mod....