preserve the entire image architecture building geometry roof forms facade layout window positions glazing proportions materials lighting surroundings and camera viewpoint exactly as shown change only the yellow marked window facade mullions and divisions replace their current yellow color with a dark anthracite graphite finish approximately ral 7016 the marked mullions should look like realistic dark anthracite metal aluminium profiles with a subtle matte finish do not change the size thickness position spacing or geometry of any mullions or windows do not redesign the facade do not modify any unmarked parts of the buildings the yellow lines are only an editing mask reference and must completely disappear in the final render
