Legacy kern table

[simoncozens]

fontations doesn't currently read or write the kern table. However, support for this table is needed for kerning in Microsoft Powerpoint. It is also the subject of a fontbakery check.

[rsheeter]

Do you mean Powerpoint only supports kern?! That's amazing.

[simoncozens]

Exactly.

[LucasHimself]

PowerPoint also supports GPOS kerning, but not on all platforms :-)

[khaledhosny]

Do you mean Powerpoint only supports kern?! That's amazing.

Unless it is a variable font:
https://forum.glyphsapp.com/t/ppt-microsoft-opentype-and-gpos-kerning-work-with-vf/31467

[rsheeter]

I immediately wonder if adding a single axis with min = default = max would suffice to make it think it's a variable font

[khaledhosny]

I’d start with an empty (or minimum valid) fvar table.