create a thin continuous gold inlay along the tile edges where the light mosaic tiles meet the darker grey tiles circled in red in the reference image follow the exact jagged edges where the dark and light meet the gold inlay should appear as a narrow metallic strip with realistic reflectivity subtle wear and slight tarnish consistent with the age and condition of the surrounding mosaic match the tile s geometry precisely no deviations breaks or artificial smoothing ensure the gold inlay sits flush with the tile surfaces integrated naturally into the grout line maintain all existing lighting shadows grime and texture so the inlay appears authentically embedded rather than digitally overlaid do not alter any tile colors patterns or grout outside the seam goal a seamless historically plausible gold inlay added along the boundary between light and dark tiles fully integrated into the mosaic s existing texture and lighting
