google/material-design-icons

LIGA and RLIG

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#1,891 建立於 2025年3月22日

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enhancementhelp wanted

描述

Hi,

I am sorry to bother, this is not an issue with the Material Symbols Font but I have researched for quite some time now and I am kindly asking for a help or a small lead, I would be so thankful... :-)

I used Material Icons in a private C# WPF Application and it works fine. I now tried to upgrade to the Material Symbols. Unfortunately the ligatures do not work anymore.

I have analyzed the fonts and I think I have found the issue: it seems that the Material Icons use the "Liga" Ligatures and the new Material Symbols use the "RLIG" Ligatures. The latter is not supported by WPF. I am no font expert and this seems to be a kind of nieche topic which I was not able to find good resources. Is there a way to get the Material Symbols with "Liga" ligatures. Is this an easy conversion or is this a larger format change?

Thank you for reading <3

貢獻者指南

技術棧
無
領域
design
議題類型
research
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
needs maintainer response
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
needs investigation
前置要求
font ligature basics
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
20
研究方向
Investigate converting RLIG ligature support in Material Symbols to LIGA format compatible with WPF. Explore font editing tools like FontForge or Glyphs to modify the OpenType feature tables. Check if previous versions of the font (Material Icons) used LIGA and if there is a script to convert. Review comments in the issue for any leads or workarounds suggested by contributors.