In order to avoid hitting the net, in theory, the difference between the colors should be 22.5 degrees, but the practice shows that the four angles of 15 degrees, 45 degrees, 75 degrees and 90 degrees are very good, and the yellow version is weak to the visual stimulus. The visual sensitivity is poor, so it is generally set at 90 degrees, and the visual is most sensitive to the 45 degree angle. Generally, the main color of the original is magenta or cyan is 45 degrees. For example, for the blue sky and white clouds, the blue version should be set to 45 degrees. For the morning glow and the sunset, the magenta version should be set to 45 degrees, and the magenta and blue non-45 degree angles can be set. For 15 degrees, the black version is set at 75 degrees. Article source address: http:// Car Seat for Baby, new born baby car seat, infant car seat, baby car safety seats, car seat for little baby NINGBO BABY FIRST BABY PRODUCTS CO.,LTD. , https://www.maxinfcarseat.com