Kindle Colorsoft users reporting screen discoloration issues. Here's Amazon's response (for now)
Briefly

"This is incredibly noticeable when the device is supposed to be evenly lit and colored like a piece of paper," a Reddit user wrote in a post sharing his dissatisfaction with the Kindle Colorsoft. "I contacted Amazon about it and they are sending a replacement device under warranty. I will see if this new one is any better, but may be returning it in the end and keeping my years old Paperwhite if this new one is not up to expectations for a $300 device."
Amazon introduced the a few weeks ago, sparking excitement among fans. This new full-color Kindle is especially appealing for readers of comics and graphic novels, and even those upgrading from older Kindles can now enjoy vibrant, full-color book covers.
Though we can't say for certain, the yellow bar appears to be part of a software problem. Many users report that this digital coffee stain wasn't visible until a recent software update, so it can likely be remediated with another over-the-air update.
This shouldn't stop customers from buying the new full-color Kindle. However, if the sight of the yellow tinge bothered me enough to return a device because of it, I'd hold off on buying a Kindle Colorsoft until the issue was fixed.
Read at ZDNET
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