Did the early concept art for Ahsoka have her in tights? I think the book was written before the start of the cartoon itself since book publishing tends to run about a year ahead. ISTR early pictures of her without the tights.* Even with the tights, the ship was still being actively worked on, and I think Pellaeon was taking issue with the dangers of exposed flesh and non-regulation uniforms around machinery, sparks from welding, and whatever else come with being on a ship still being refitted. *I just made the mistake of doing a Google Image search to try and offer a more informed opinion and now I feel skeevy. Come on! I wasn't even aiming for the weird part of the internet!