Two Font Sizes and \xdef

Question

I need both \large and \huge fonts inside of TikZ diagrams for an exercise for kids to learn that, say, adding a negative is the same as subtracting a positive.

Unfortunately, the font size commands don't seem to survive the \xdef command in which they're placed.

I'm trying to create a MWE and having a horrible time doing it... Can anyone answer this question without an MWE? I'll keep working on the MWE until/unless someone can figure this out...

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EDIT: This isn't really a minimum working example, but it has the bug... I included \makeatletter and \protected@xdef as recommended in the comments.

https://www.sharelatex.com/project/59f9f7ad53d7fe35b052e16b

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EDIT 2: I think I may have isolated the problem in my new thread.

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OR

\documentclass{article}


\usepackage[margin=2cm]{geometry}
\usepackage{pgffor}
 \pgfmathsetseed{\number\pdfrandomseed}
\usepackage{tikz}


%BLANK VARIABLE STUFF
\newcommand{\Operator}{}
\newcommand{\Sign}{}
\newcommand{\Simplified}{}


\newcommand{\InitVariables}
{%
\pgfmathrandominteger{\Type}{1}{4}
\ifcase\Type\relax
 \or    \renewcommand{\Operator}{+}
        \renewcommand{\Sign}{+}
        \renewcommand{\Simplified}{+}
 \or    \renewcommand{\Operator}{+}
        \renewcommand{\Sign}{-}
        \renewcommand{\Simplified}{-}
 \or    \renewcommand{\Operator}{-}
        \renewcommand{\Sign}{+}
        \renewcommand{\Simplified}{-}
 \or    \renewcommand{\Operator}{-}
        \renewcommand{\Sign}{-}
        \renewcommand{\Simplified}{+}
\fi
\pgfmathrandominteger{\Magnitude}{1}{20}
\pgfmathrandominteger{\MagnitudeWithZero}{0}{20}
\pgfmathsetmacro{\NegativeMagnitudeWithZero}{int(-1*\MagnitudeWithZero)}
\pgfmathrandominteger{\VariedSignAndBracketType}{1}{16}
}


\newcommand{\fewer}
 {\draw[blue] (-2.2,-1) rectangle( -1.1,-1.6);}
\newcommand{\more}
 {\draw[blue] (-2.2,-1) rectangle (-1.1,-0.5);}
\newcommand{\gains}
 {\draw[blue] (-1,-1) rectangle (0.2,-0.5);}
\newcommand{\losses}
 {\draw[blue] (-1,-1) rectangle (0.2,-1.6);}
\newcommand{\good}
 {\draw[blue] (1.2,-1) rectangle (2.3,-0.5);}
\newcommand{\bad}
 {\draw[blue] (1.2,-1) rectangle (2.3,-1.6);}


%MORE BLANK VARIABLE STUFF
\newcommand{\TwoSignsExercise}{}
\newcommand{\TwoSignsSolution}{}

\newcommand{\TwoSignsGenerator}
{%
\InitVariables
\renewcommand{\TwoSignsExercise}
{%
\begin{tikzpicture}
\node[anchor=center] at (-1.35,0) {\huge $\Operator$};
\node[anchor=center] at (0,0) {\huge $(\Sign)=$};
\draw[dashed, thick] (1.3,-0.4) rectangle (2.3,0.6);
\node[anchor=center] at (-1.6,-0.8) {\large more};
\node[anchor=center] at (-1.6,-1.3) {\large fewer};
\node[anchor=center] at (-0.4,-0.8) {\large gains};
\node[anchor=center] at (-0.4,-1.3) {\large losses};
\node[anchor=center] at (0.6,-1.05) {\large is};
\node[anchor=center] at (1.8,-0.8) {\large good};
\node[anchor=center] at (1.8,-1.3) {\large bad};
\end{tikzpicture}
}
%
\renewcommand{\TwoSignsSolution}
{%
\begin{tikzpicture}
\ifcase\Type\relax
 \or \more \gains \good
 \or \more \losses \bad
 \or \fewer \gains \bad
 \or \fewer \losses \good
\fi
\node[anchor=center] at (-1.35,0) {\huge $\Operator$};
\node[anchor=center] at (0,0) {\huge $(\Sign)=$};
\draw[dashed, thick] (1.3,-0.4) rectangle (2.3,0.6);
\node[anchor=center, blue] at (1.8,0) {\huge {$\Simplified$}};
\node[anchor=center] at (-1.6,-0.8) {\large more};
\node[anchor=center] at (-1.6,-1.3) {\large fewer};
\node[anchor=center] at (-0.4,-0.8) {\large gains};
\node[anchor=center] at (-0.4,-1.3) {\large losses};
\node[anchor=center] at (0.6,-1.05) {\large is};
\node[anchor=center] at (1.8,-0.8) {\large good};
\node[anchor=center] at (1.8,-1.3) {\large bad};
\end{tikzpicture}
}
}

\makeatletter

\newcommand{\ManyTwoSignsSolutions}{}

\newcommand{\ManyTwoSignsExercises}
{%
 \foreach \x in {1,...,10}
  {%
   \TwoSignsGenerator \TwoSignsExercise \vskip 0.25cm
   \protected@xdef\ManyTwoSignsSolutions{\ManyTwoSignsSolutions \TwoSignsSolution}
  }
}


\setlength{\parindent}{0em}




\begin{document}

\section*{Exercises}

\ManyTwoSignsExercises

\section*{Solutions}

\ManyTwoSignsSolutions

\end{document}