REAPER WARNING ....

I read this message on the Reaper main page. It was listing the new features in Version 4.15... "REAPER will now (by default on 32-bit versions) warn when memory use is too high, allowing you to correct the problem before things go wrong." Does anyone know what the warning is (or looks like) and how it comes up/or is displayed ??? Thanks in advance!

It looks like this:

Hi, and Thank You !