Only show program files in backtrace (excluding gems)

[bgvo]

Problem description

The backtrace shows files belonging to gems when I only need to see files from my program.

Expected behavior

I'd like to be shown only paths that belong to my program, excluding gems' paths. Some flag that I can configure in .byebugrc perhaps that allow me to switch off gems' paths.

Actual behavior

All files' paths are shown. I read the guide in the Readme but I haven't found the way to make this work