there should be a sequence of red, green, and blue borders on the cells when print previewed

row 1 row 1 row 1 row 1
row 2 row 2 row 2 row 2
row 3 row 3 row 3 row 3
row 1 row 1 row 1 row 1
row 2 row 2 row 2 row 2
row 3 row 3 row 3 row 3
row 1 row 1 row 1 row 1
row 2 row 2 row 2 row 2
row 3 row 3 row 3 row 3
row 1 row 1 row 1 row 1
row 2 row 2 row 2 row 2
row 3 row 3 row 3 row 3
row 1 row 1 row 1 row 1
row 2 row 2 row 2 row 2
row 3 row 3 row 3 row 3