Amazon is shaking up its entire Kindle e-reader lineup today, at least by the slow-moving and relatively placid standards of the e-reader market. The company is announcing a major refresh to the pen-centric Kindle Scribe, a screen-size bump for the mainstream Kindle Paperwhite, and small tweaks to the basic Kindle—a rare simultaneous refresh for devices that the company usually updates one or two at a time. In addition to the monochrome e-readers, Amazon introduced its first color e-reader today.