This is what I expected:

This is what I got:

Code: Select all
variants =
{
main =
{
{
picture = "__base__/graphics/terrain/concrete/concrete-dummy.png",
count = 1,
size = 1
}
},
empty_transitions = true,
material_background =
{
picture = "__mymod__/graphics/terrain/starfield.jpg",
count = 1,
scale = 0.5, -- image is 512x512
}
},