I am a proud owner of the 2015 MB 12 and just got 2017 model. I installed the same color profiles on both laptops and can tell there is a difference between two screens, likely due to different panels or graphic cards. 2017 model has slightly warmer panel look with boosted contrast, making colors slightly more saturated and text darker. While I think I like it, I wonder if text is a bit smudgy making it harder to read. Anything I can do to investigate it?