I have noticed something recently.
Look at the original windows logo, how many colors are there?
4, blue, red, green, and yellow.

Look at the windows 10 Threshold update Logo and Background and Theme. The main color is BLUE.
Look at the windows 10 Redstone update Logo and Background and Theme. The main color is RED.

What I believe is happening:
I feel that Microsoft is basing the windows 10 updates on the main four colors of the old logo. It is possible that the next update could be based on yellow or green.

What do you all think about this?