sven wrote:changing the .25 to a .125 gives you borders that are significantly closer together:
Value .125 does seem to resolve the points mentioned above. There is less noise graphically, the contours are more markant but the areas are still clearly distinguishable.
I see what you mean when zoomed out, but not a major issue - maybe change the value slightly only when on maximum zoom out level, though I guess this would mean performance hit
This is minor tinkering though and afraid to go down through this particular rabbit hole (else I spend hours with it like with my Monitor color calibration - and it still doesn't seem right )