i have been using it for 3 days after a fresh install and now the colors of my display is oversaturated blue is more purple and orange is more red. It was quite good and similar to what i use to see in windows when i first installed it. i use a external monitor with my laptop both the display is lodpi 1600x900 monitor ,1366x768 laptop display
Is the issue on both the laptop screen as well as the external monitor?
Have you tried removing the external monitor from the laptop and reboot? is the issue still there?
If you boot up from a live USB does the issue persist?
I ask because i want to see if we can work out if its a hardware issue or something with the OS installation.