Orbisius Theme Editor page popup message says “[Website URL] says Cheating?”

I am in the process of setting up a new website hosted by Siteground. I installed a theme and then installed the Orbisius Child Theme plugin. I created a child theme and when I click on the Orbisius Theme Editor link under Appearance, the Editor page loads and a popup message appears saying “[Website URL] says Cheating?” with an OK button.

I click the OK button and I can get into the editor but what is that popup message?