render a modern conference hall with vibrant lighting and colorful abstract designs on the walls use a combination of bright orange green and blue for the abstract patterns on a matte black background the stage features a sleek metallic structure with spotlights casting beams of green blue and yellow light across the room rows of stylish gray upholstered chairs are arranged in a semi circle facing the stage the atmosphere is energetic and welcoming with a backdrop featuring welcome and barcelona 2025 in bold white text on warm orange and green panels the floor is a polished light gray stone
