Closed khaledhosny closed 5 years ago
beamer.cls transparency does not work for COLR/CPAL nor CBDT/CBLC font as expected π
\documentclass{beamer}
\usepackage{harfload}
\usepackage{fontspec}
\setsansfont{Segoe UI Emoji}[
RawFeature={mode=harf;+dist;+ccmp}]
\usetheme{Madrid}
\begin{document}
\begin{frame}{text π text after emoji}
\setbeamercovered{transparent=30}
\begin{itemize}
\item <+-> Apple π{\fontspec[RawFeature={mode=harf}]{Noto Color Emoji} π}
\item <+-> Peach π{\fontspec[RawFeature={mode=harf}]{Noto Color Emoji} π}
\item <+-> Orange π{\fontspec[RawFeature={mode=harf}]{Noto Color Emoji} π}
\end{itemize}
\end{frame}
\end{document}
That is a different issue, though. My issue is about when the font palette uses transparent color. Your issue is about respecting transparent text color.
I donβt think bitmap fonts can be easily made transparent. Layer fonts should be doable, but that requires more deeper knowledge of LaTeX, PDF and LuaTeX than I do.
Will be fixed when integrated with luaotfload.
Issues #14 and #15 implemented support for color options and fonts, but transparency (alpha) is currently ignored because it needs cooperation between various LaTeX package. We need to figure what should be done here.