[Solved] How to make whole map black (Terrain)

[Kongepal]

First of all, hello, thank you in advance for your answers.

I want to design a map. Except for the areas I designed on the map, I want all terrains to be black. When I use Boundary for this, the terrain behind it can be seen even if a little. Especially when I don't turn off the fog of war and black mask on the whole map, it becomes more obvious. I hope you understand what I said, I am waiting for your answers. If you are curious about the details, you can specify them as a comment.

Stay Healthy

 

[Vinz]

Use Abyss + Boundary:

 

[Kongepal]

Thank you so much, it will be a good guide for those who do not know.

For those who don't know, you can add New Custom Tileset in the Advanced section.