If the green color seems old and boring, you can choose other colors, but paying attention to color is of great importance. Blue, red, and yellow colors have many advantages similar to green. Due to the high contrast, you can easily visually track paths, gaps, lines, and materials in case of any error, as well as perform quality control with some tools. Likewise, for quality control machines, the greater the contrast, the better the performance. That's why big manufacturers prefer the green color. Quality control machines check whether the materials on the PCB boards are correct and arranged at the right angles.