是的,Paratext 9 會顯示指定的 OpenType 字型功能,但用於選擇/指定功能的 GUI 壞掉了??(詳情請見此處……在 PT Lite 中可以編輯功能列表!)
幾年前,SIL 字型第 6 版——Charis、Gentium、Andika、Doulos——從 Graphite 切換到 OpenType 以存取字型功能,也就是「替代字形」。自此之後,Paratext 的字型功能選擇列表對這些字型的第 5 版有效,但如果您的系統安裝了第 6 版,「選擇」按鈕就會呈灰色,如截圖所示。
然而,我決定檢查我自己的 Paratext 專案。令我驚訝的是,我看到 OpenType 代碼 LiteracyAlternates=off 和 GlottalStop=large 已經輸入到字型功能文字框中,如截圖所示。這些功能在我的 Paratext 專案中顯示正確——在 PT9 以及 PT Lite——Android 和 --Desktop-Linux 中都是如此。然而,令人驚訝的是,我無法在 PT 9 中編輯截圖中的功能列表,也無法將功能規格添加到其他專案中。我的功能選擇在 PT9 中只是「存在且運作正常」。
Paratext Lite(Linux 桌面版 Beta 版)提供了我所見過最易於使用的 OpenType 圖形化字型功能編輯畫面——比 LibreOffice 好得多!向 PTLite 團隊致敬!
PT9 語言設定:

PTLite 語言設定 > 編輯字型功能(片段):

Yes, Paratext 9 displays specified OpenType font features, but the GUI for selecting/specifying features is broken?? (Details here... editing the feature list is available in PT Lite!)
A few years ago version 6 of the SIL fonts--Charis, Gentium, Andika, Doulos--switched from Graphite to OpenType for accessing Font Features, or "alternate glyphs." Since then Paratext's Font Features selection list works for v. 5 of any of these fonts but if your system has v. 6 the "Choose" button is greyed out, as in the screenshot.
However, I decided to check out my own Paratext project. I was surprised to see the OpenType codes for LiteracyAlternates=off and GlottalStop=large already typed into the Font Features text box, as the screenshot shows. These features are displaying correctly in my Paratext projects--in PT9 and also in PT Lite--Android and --Desktop-Linux. Surprisingly though, I can not edit the pictured feature list in PT 9, nor add feature specs into other projects. My feature choices are just "present and working" in PT9.
Paratext Lite (Beta version for Linux desktop), however, provides the easiest-to-use OpenType graphical font feature editing screen that I've seen--much better than LibreOffice! Kudos to the PTLite team!
PT9 Language Settings:

PTLite Language Settings > Edit Font Features (snippet):

機器翻譯自 English