NGraphics|FLAT_MAP_MATERIAL_TILE_SIZE

NGraphics|FLAT_MAP_MATERIAL_TILE_SIZEloading_screen/common/defines/graphic/00_graphics.txt:112

Tuned to give ~2:1 pixel/texel ratio in max zoom on 4k monitor

Definitionloading_screen/common/defines/graphic/00_graphics.txt:112