Hi,
Could you please upload a gif or a video of discoloration happening? We can try to determine what's causing it and note to add an option to disable it in the future. We had occasions of outlines stretching through the screen and in your case it sounds like it might be either color correction or eye adaptation breaking the view.
By the way, have you had any other issues with games made with Unity engine on your machine? Specifically, we're running a 2017.4.2 version.
Thank you for your effort to test our game!