Font not found

[nelo]

Try to open the .xcf file with an editor that can handle binaries like Notepad++(runs via wine here) or some hex editor and search for "font"
you might find something like this:

(font "Arial")
(font-size 15.000000)
(font-size-unit pixels)
(antialias yes)
(language "de-de")
(base-direction ltr)
(color (color-rgb 0.000000 0.000000 0.000000))
(justify center)
(box-mode dynamic)
(box-width 344.000000)
(box-height 24.000000)
(box-unit pixels)
(hinting yes)