Curious, is the glass thinner or display lighting underneath closer to the surface than previous versions? I noticed today while drawing toward the corners a bright slight ripple effect like when you touch an LCD monitor display and you get that ripple effect. Not the typical rainbow effect you would see on most lcd screens, but just brighter. This happens with any slight pressure around the edges but not the middle. Not looking to create OCD, just wanting to make sure it’s normal on these models and not a defect.