The tags with the icons are white. https://i.imgur.com/ZlvXsaR.jpg https://i.imgur.com/ZlvXsaR.jpg The tags with the Apple logo are a mirror finish. https://

The tags with the icons are white. https://i.imgur.com/ZlvXsaR.jpg https://i.imgur.com/ZlvXsaR.jpg The tags with the Apple logo are a mirror finish. https://i.imgur.com/QaVobYc.jpg https://i.imgur.com/QaVobYc.jpg The sharp line isn't part of the design, it's just a minimalist way of showing a highly reflective material. The sharper the line, the sharper the reflections in the surface. The line is curved because the surface of the tag is curved (e.g. you can see how the straight window is curved in the above image). If the tag was a flat surface, then it would be a straight line.