Because red and green are complementary colors opposite one another on the color wheel, they’ve become the default colors for every designer who wants to represent opposites: true and false, high and low, stop and go. Inconveniently, these are also the two colors most likely to be mixed up by people with color vision deficiencies.
It me!
I think that if you want to know how something is made, you should look for the grids. They are the ever-present, behind-the-scenes structure of our cities, our machines, our homes, and our lives. You’ll find the grid in the artist’s studio, in the patterns of the textile weaver’s pattern book, in the architect’s floor plan sketches, in the engineer’s CAD software; even the monospaced fonts that programmers use fit to the grid.
Source: GRID WORLD by Alexander Miller