Feature request: OpenType font features

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Tim Kempton

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Nov 25, 2025, 5:28:32 AMNov 25

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I've been impressed that Flex supports Graphite font features.

Back in 2021 SIL started to remove Graphite from their fonts e.g.

> Graphite has been removed. Application and OS support for OpenType has greatly improved, so the need for Graphite in this font is greatly reduced. If this affects you, and you find that OpenType does not provide sufficient support for your needs, please contact us right away.

From https://software.sil.org/doulos/release-6-000/

Assuming that Flex doesn't yet support OpenType font features, it would be great if it could. For example it would allow me to remove staves from the Chao tone letters so I can emulate Keith Snider's pitch bar notation in a unicode compliant way. (My current workaround is to use the older SIL Doulos v5 font. A possible future workaround is to remove the staves myself and create a new font.)