Hello @glennyabellana , I really don't know, but I investigate a little. With inspector tool, I see blue properties are in 'ext ext-pending' class, that means: "This term is in the "new" area - implementation feedback and adoption from applications and websites can help improve our definitions". So it's new.
Then, in red properties are 'core' class: definitely accepted... I attach an edited screenshot.

Perhaps is about that; new vs. accepted