I'm using the Alegreya font in XeLaTeX and, after scouring the fontspec documentation, I can't figure out how to specify the bold small caps font (not to mention the italic small caps). I feel like the answer is right under my nose, I just can't quite find it. The font definitely has bold small caps, as shown on page three here.
%XeLaTeX
\documentclass{report}
\usepackage{fontspec}
\setmainfont[
SmallCapsFont={AlegreyaSC-Regular},
SmallCapsFeatures={Letters=SmallCaps},
Ligatures=TeX]{Alegreya}
\begin{document}
\textsc{Small Capitals!}
\textbf{\textsc{Bold Small Capitals?}}
\end{document}
And while we're at it, what's the purpose of
SmallCapsFeatures={Letters=SmallCaps}
It seems to make no difference in my larger file.