Is it only adobe reader or are all your colours different, is it the way that you have set up your display/graphics card? If it is readable and other windows are OK the 'if it ain't broke, don't fix it' may be the answer.
The Evil Within 2 review-in-progress
Adobe shows still-in-development tools, including automatically colourising black-and-white photos
iPhone X news: Release date, price, new features & specs
Comment transformer un iPhone en borne Wi-Fi ?