@User I have some code that generates "flabel" lines in .mag files, but I can't find documentation about those lines anymore, except for one line mentioning its existence in the history. What should I use instead of flabel, or where is it documented?

See database/DBio.c lines 366 to 371.

Ah, I had a rounding error on my side. Fixed. Thanks!

Which is a common problem that crops up more often than I ever expect.