User talk:Sd2731953

March 2019
Hello, I'm JackintheBox. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to CIE 1931 color space— because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help Desk. Thanks. J ACKINTHE  B  OX   • TALK 08:06, 25 March 2019 (UTC)