Rakuten has a trio of new Kobo ereaders, including the company’s first two with color displays. On Wednesday, the company revealed the $220 Kobo Libra Colour and $150 Clara Colour alongside the monochrome $130 Clara BW. You can preorder them today, ahead of their April 30 launch. The Kobo Libra Colour has a seven-inch E Ink Kaleido 3 display, which should have a noticeable improvement with 16 levels of grayscale, 4,096 colors and 30 percent better color saturation than E Ink’s last-gen tech. The... Read this story