eplace only the existing plain beige fabric canopy of the pergola with an elegant retractable fabric roof featuring alternating navy blue and warm white stripes matching the reference image the retractable canopy should feature realistic gently curved fabric folds creating a subtle wave like effect typical of a sliding retractable awning system the navy blue and white stripes should follow the direction of the fabric folds with consistent stripe widths and a sophisticated mediterranean hospitality aesthetic maintain the existing white pergola structure columns beams dimensions roof inclination perspective and exact architectural geometry the new striped fabric must fit perfectly within the existing pergola frame with realistic fabric tension natural folds subtle shadows and authentic textile texture critical modify only the pergola roof fabric do not alter the pergola structure furniture cushions flooring swimming pool vegetation lighting camera angle or any other element of the original image photorealistic architectural visualisation natural mediterranean daylight refined materials and realistic shadows no redesign no additional objects