Restoring colorful app icons on the Home Screen after iOS update

After a recent update all of my icons were very colorful (See picture below), then another update took that away. How can I get back the colorful icons like in the picture below? I think maybe some colors were just inverted, but I am not sure. I like that way it looked though and would love to go back to that. Thanks in advance.

[Re-Titled by Moderator]