Color of pieces

Does someone know how the choice of the color is programmed? Just very stange: on a streak of 5 games they forced me to play 4 games with black. It is a nonsense to me.
Currently, the player most due black gets that color, unless it's a rematch where it alternates.
It's certainly possible to get multiple of the same color in a row but over the long run it will trend to 50/50
Does someone know how the choice of the color is programmed? Just very stange: on a streak of 5 games they forced me to play 4 games with black. It is a nonsense to me.