Red vein dull

Red vein dull is a tile in the Factorio tile system categorized as a decoration; it is a decorative ground surface used purely for visual variety and does not provide gameplay bonuses, resource production, or special interactions. As a decorative tile, Red vein dull is intended to change the appearance of terrain where placed or generated, matching the game's environmental art style while remaining functionally equivalent to other non-functional decorative tiles. If only the name and category are present, this describes its role within the game's tile classification.