This post refers to a two-color lettrine provided by egreg in Centering an Initfamily Letter within a Colorbox and Sizing It for Use as a Two-Color Lettrine.
Consider the code
\documentclass{book}
\usepackage{lipsum}
\usepackage{lettrine}
\usepackage{lmodern}
\usepackage{xcolor}
\usepackage[tracking=true]{microtype}
\definecolor{brownish}{RGB}{141, 81, 24}
\input{GoudyIn.fd}
\newcommand*\initfamily{\usefont{U}{GoudyIn}{xl}{n}}
\newlength{\goudycorr}
\newcommand{\egreglettrine}[1]{%
\begingroup
\setlength{\fboxsep}{0pt}%
\fontsize{85}{0}\initfamily
\colorbox{black}{%
\makebox[\height][l]{\color{brownish}#1}%
}%
\endgroup
}
\begin{document}
\thispagestyle{empty}
\large
\lettrine[lines=3,loversize=0.55]{\color{brownish}{\initfamily{T}}}{he Lorem ipsum} \lipsum[3]
\vspace*{20pt}
\noindent\egreglettrine{T} \textbf{egreg lettrine that I would like to make use of.}
\vspace*{20pt}
\noindent\egreglettrine{T}[lines=3,loversize=0.55]{\color{brownish}{\initfamily{T}}}{he Lorem ipsum} \lipsum[3]
\end{document}
which produces
The first paragraph displays an ordinary initfamily with positioning parameters [lines=3,loversize=0.55] given in the code.
The second paragraph of the output is the egreg lettrine that I would like to make use of in a document. However, specifying \noindent\egreglettrine{T}[lines=3,loversize=0.55]{\color{brownish}{\initfamily{T}}}{he Lorem ipsum} \lipsum[3] produces what we see in the third paragraph of the output.
QUESTION: Can someone advise me as to how to I can specify positioning parameters for the egreg lettrine according to those found in https://mirror.math.princeton.edu/pub/CTAN/macros/latex/contrib/lettrine/doc/lettrine.pdf according to David Carlisle’s keyval.sty syntax? i.e., analogous to the way in which they are specified for an ordinary lettrine.
Thank you.


\lettrinebut not actually used\lettrine– David Carlisle Feb 10 '22 at 21:25\egreglettrineisn't a lettrine (ie drop cap) at all it's just a big fancy T so use it in the first argument of\lettrinein place of\initfamily{T}which should be\initfamily Tas it doesn't take an argument. – David Carlisle Feb 10 '22 at 21:27