latex customizations from grad school

mycommands.sty

\usepackage{amsmath,amssymb, amsfonts, amsthm} 
\usepackage{setspace, framed, pdfsync,tocloft} 
\usepackage[colorinlistoftodos, textwidth=4cm, shadow]{todonotes} 
\usepackage{color} \onehalfspacing

\newcommand{\unfinished}{
	\begin{MyBox}
		\listoftodos
	\end{MyBox}\pagecolor{mydarkgray}\color{mylightgray}}

%Superscript Text
\newcommand{\superscript}[1]{\ensuremath{^{\textrm{#1}}} } 
\newcommand{\subscript}[1]{\ensuremath{_{\textrm{#1}}} }

\newcommand{\supth}[0]{\superscript{th}} 
\newcommand{\st}[0]{\superscript{st}} 
\newcommand{\nd}[0]{\superscript{nd}}  
\newcommand{\rd}[0]{\superscript{rd}}

%Brackets%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand{\set}[1]{\left\{#1\right\}} 
\newcommand{\parens}[1]{\left(#1\right)} 
\newcommand{\bigparens}[1]{\bigl(#1\bigr)} 
\newcommand{\ang}[1]{\left\langle#1\right\rangle} 
\newcommand{\floor}[1]{\left\lfloor#1\right\rfloor} 
\newcommand{\bra}[1]{\left[#1\right]} 
\newcommand{\bigbra}[1]{\bigl[#1\bigr]} 
\newcommand{\psbra}[1]{\bra{\bra{#1}}} 
\newcommand{\abs}[1]{\left|#1\right|} 
\newcommand{\bigabs}[1]{\bigl|#1\bigr|} 
\newcommand{\biggerabs}[1]{\Bigl|#1\Bigr|} 
\newcommand{\Bigabs}[1]{\biggl|#1\biggr|} 
\newcommand{\Biggerabs}[1]{\Biggl|#1\Biggr|} 
\newcommand{\norm}[1]{\left\|#1\right\|} 
\newcommand{\onen}[1]{\norm{#1}_{1}} 
\newcommand{\twon}[1]{\norm{#1}_{2}} 
\newcommand{\infn}[1]{\norm{#1}_{\infty}} 
\newcommand{\pn}[1]{\norm{#1}_{p}} 
\newcommand{\cvec}[2]{\left[ 
\begin{matrix}
	#1 \\
	#2 
\end{matrix}
\right]}

%Common Commands
\newcommand{\normal}{\vartriangleleft} 
\newcommand{\E}{\text{E}} 
\newcommand{\Var}{\text{Var}} 
\newcommand{\Cov}{\text{Cov}} 
\newcommand{\VarX}{\Var\;X} 
\newcommand{\VarY}{\Var\;Y} 
\newcommand{\EX}{\E X} 
\newcommand{\EY}{\E Y} 
\newcommand{\dx}{\;dx} 
\newcommand{\dt}{\;dt} 
\newcommand{\dy}{\;dy} 
\newcommand{\res}[1]{\text{ res}\parens{#1}} 
\newcommand{\g}{\,|\,} 

%Given, for probabilities
\newcommand{\vf}{
\vfill} 
\newcommand{\ds}{\displaystyle} 
\newcommand{\ra}{\rightarrow} 
\newcommand{\n}{\text{n}} 
\newcommand{\F}{\mathbb{F}} 
\newcommand{\N}{\mathbb{N}} 
\newcommand{\D}{\mathbb{D}} 
\newcommand{\Z}{\mathbb{Z}} 
\newcommand{\Q}{\mathbb{Q}} 
\newcommand{\R}{\mathbb{R}} 
\newcommand{\C}{\mathbb{C}} 
\newcommand{\cn}{\mathbb{C}^n} 
\newcommand{\dollarsign}{\$} 
\newcommand{\real}{\text{\textbf{\,Re\,}}} 
\newcommand{\imag}{\text{\textbf{\,Im\,}}} 
\newcommand{\Arg}{\text{Arg\;}} 
\newcommand{\Gal}{\text{Gal}} 
\newcommand{\ann}{\text{ann}} 
\newcommand{\pd}[2]{\frac{
\partial#1}{
\partial#2}} 
\newcommand{\zg}[2]{\bra{#2}_{#1}}

\DeclareMathOperator*{\argmax}{arg\,max}
\def\imod#1{\allowbreak\mkern10mu({\operator@font mod}\,\,#1)} 
\newcommand{\fini}{\hfill \mbox{
\raggedright $\Box$}} 
\newcommand{\finimath}[1]{
\newline
\newline \mbox{} \hfill $\displaystyle #1$ \hfill \mbox{
\raggedright $\Box$}}

%Colors
\definecolor{mydarkgray}{rgb}{.074,.074,.074} 
\definecolor{mylightgray}{rgb}{.54,.54,.54} 
\definecolor{mygray}{rgb}{.9,.9,.9} 
\definecolor{gray2}{rgb}{.5,.5,.5} 
\definecolor{black}{rgb}{0,0,0} 
\definecolor{myyellow}{RGB}{193,193,68}

%Todo
\newcommand{\ptodo}[2]{\todo[inline,color=myyellow]{{\color{black}\textbf{Problem #1:} #2}}}

%Boxes
\newenvironment{HWBox}{
{\begin{HWBox}\begin{MyBox}}
{\end{HWBox}\end{MyBox}}
}

\newenvironment{MyBox}[1][mylightgray]{ 
\def\FrameCommand{\fboxsep=\FrameSep \fboxrule=\FrameRule \fcolorbox{black}{#1}
}

\MakeFramed
{
	\setlength{\textwidth}{\textwidth} 
	\addtolength{\textwidth}{-3\FrameSep}
	\addtolength{\textwidth}{-3\FrameRule}
	\setlength{\hsize}{\textwidth} 
	\FrameRestore}
}
{\endMakeFramed}

\newcommand{\Question}[2]{
\begin{MyBox}
\noindent {\large \textbf{\color{black}\sf Problem #1}} 
\noindent {\color{black}\small  #2} \nopagebreak 
\end{MyBox}
}