BPG_Nateli_Caps_GPL-GNU.ttf : 'BPG Nateli Caps GPL&GNU'
BPG_Nateli_Condenced_GPL-GNU.ttf : 'BPG Nateli Condenced GPL&GNU'
BPG_Nateli_GPL-GNU.ttf : 'BPG Nateli GPL&GNU'
As I understand it, TT_NAME_ID_PREFERRED_FAMILY is supposed to be the same for all files in the same high-level family, and this seems to be what most other fonts do in Linux. For the next release could you please set the PreferredFamily key to just "BPG Nateli" in all three files. This allows component installers like gnome-software to group the fonts together rather than showing them as separate entries.
Thanks,
Richard.