[trekkor]

The grout color with that decorative strip plays tricks on my eyes!

Looks like a dark dot in each intersection in the picture.

Grout color can do that.
There is a display with a black and white pattern with white grout.
looks normal.
With grey grout, it looks bendy and wavy.
The eye can't focus on the white or the black due to the mid shade tone of the grey.

Weird.


KT