gimp Tools text select text and hover to see name of the font when not installed on s

[JJGimp]

Hello, I had to reinstall gimp and some of the fonts in my previously created xcf files are not "on the system" - I need to make an edit and need to find out what the font is to reinstall it. Somehow when I was on the text layer and selected "Tools > Text" and selected the text, while the text box was in red and said "Standard" (Since font not on system) there was a "pop up"? that identified the font. When I try to duplicate this for another font style, I can't. Does anyone know what the steps are to see this?

Thank you!