It'd look like a giant aubergine/egg plant/engorged male member.
Edge on so you only see a line. I suspect the panels fulfil a dual purpose of solar collector and radiator or, given there is at least one stonking great fusion reactor, they are radiator panels only - the shuttle's radiators inside the cargo bay doors had a two-layer coating of a silver reflective layer covered by a thin Teflon film. The ISS has separate panels for each function. Its radiator panels are white. That was one thing about the DIscovery spaceship in 2001: A Space Odyssey - the book version had radiator panels, but the movie version didn't. I believe they thought the audience would mistake them for wings.