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John Hudson said:
Where is that Summary from? It looks like some kind of test result, but without knowing what is being tested for, it is impossible to determine what might need to be done.OpenType Layout tables may contain Language System trees for features and lookups, but they don't have to, and there is no required set of Language System entries that needs to be included in a font. Everything depends on the design of the font, how it works, and what language-specific behaviour it might require.
Igor Freiberger said:
An excellent place to find such tests is Stefan Peev's LocalFont.eu. (By the way, the whole localfonts site is excellent.)
Theunis de Jong said:
Ah, Igor, apologies -- all those huge screenshots must have thrown me off course!
Yes, that looks like the intended use.