Jugar competes for the title of plainest-looking in this group, and it’s also the bulkiest. The Joy Factory chose to use a particularly thick silicone rubber that packs in a hidden metal frame along the front edge at the top and bottom of the case. Coming in solid black, purple, pink, or grey, the case doesn’t stand out aesthetically; there are some dots for texture along the side edges, but it’s otherwise flat and plain. The one…