Editor brushes
If you want more brushes available in the built-in editor, then you can add images (tga extension) in the folder \Editor_Data\Brushes
They will be auto-detected by the game, so there is nothing more to do.
If you want more brushes available in the built-in editor, then you can add images (tga extension) in the folder \Editor_Data\Brushes
They will be auto-detected by the game, so there is nothing more to do.