The code source is on https://git.gnome.org/browse/file-roller and you can read https://wiki.gnome.org/Newcomers/SubmittingPatches to have details on how to submit a patch to the code
The code source is on https:/ /git.gnome. org/browse/ file-roller and you can read https:/ /wiki.gnome. org/Newcomers/ SubmittingPatch es to have details on how to submit a patch to the code