ORMCbox fix

Advanced/Introduction to Quantum/parts/02.00 half a qubit.tex

@@ -47,7 +47,7 @@ However, \texttt{0} and \texttt{1} aren't the only states a qubit may have.
 We'll make sense of quantum bits by extending the \say{vectored} bit representation we developed in the previous section.
 First, let's look at a diagram we drew a few pages ago:
 
-\begin{timetravel}
+\begin{ORMCbox}{Time Travel (Page 2)}{black!10!white}{black!65!white}
 	A classical bit takes states in $\{\texttt{0}, \texttt{1}\}$, picking one at a time. \par
 	We'll represent \texttt{0} and \texttt{1} as perpendicular unit vectors $\ket{0}$ and $\ket{1}$,
 	show below.
@@ -72,7 +72,7 @@ First, let's look at a diagram we drew a few pages ago:
 	The point marked $1$ is at $[0, 1]$. It is no parts $\ket{0}$, and all parts $\ket{1}$. \par
 	Of course, we can say something similar about the point marked $0$: \par
 	It is at $[1, 0] = (1 \times \ket{0}) + (0 \times \ket{1})$, and is thus all $\ket{0}$ and no $\ket{1}$. \par
-\end{timetravel}
+\end{ORMCbox}
 
 The diagram in the box above can also be used to describe the state of a qubit. \par
 Like classical bits, qubits have the \textit{basis states} $\ket{0}$ and $\ket{1}$. \par

resources/ormc_handout.cls

@@ -643,9 +643,8 @@
 
 % Make a box environment.
 % These can safely be nested.
-% Args: name, title, back color, frame color.
-\newcommand{\@makeORMCbox}[4]{
-	\newenvironment{#1}{
+% Args: title, back color, frame color.
+\newenvironment{ORMCbox}[3]{
 	% \linehack draws a line across a tcolorbox.
 	% tcolorbox only supports two sections, but
 	% this hack allows us to have more.
@@ -655,7 +654,7 @@
 				(0, 0) --
 				(\linewidth, 0);
 
-				\draw[color=#4, dashed, dash phase=1mm]
+			\draw[color=#3, dashed, dash phase=1mm]
 				(0 - \kvtcb@leftlower-\kvtcb@boxsep, 0) --
 				(\linewidth + \kvtcb@rightlower + \kvtcb@boxsep, 0);
 		\end{tikzpicture} \par
@@ -664,17 +663,17 @@
 
 	% Keep track of the current background color.
 	% Useful for transparent tikz drawings.
-		\def\ORMCbgcolor{#3}
+	\def\ORMCbgcolor{#2}
 
 	\begin{tcolorbox}[
 		enhanced,
 		breakable,
-			colback=#3,
-			colframe=#4,
-			colbacktitle=#4,
+		colback=#2,
+		colframe=#3,
+		colbacktitle=#3,
 		titlerule=0.6mm,
-			title={\textbf{#2}},
-			title after break={\textbf{#2 (continued)}},
+		title={\textbf{#1}},
+		title after break={\textbf{#1 (continued)}},
 		frame style={draw=none,fill=none},
 		boxrule=0mm, % We need this even with hidden borders for correct spacing
 		arc=0mm,
@@ -684,13 +683,24 @@
 } {
 	\end{tcolorbox}
 }
+
+\newenvironment{examplesolution}{
+	\begin{ORMCbox}{Example Solution}{black!10!white}{black!65!white}
+} {
+	\end{ORMCbox}
 }
 
-\@makeORMCbox{examplesolution}{Example Solution}{black!10!white}{black!65!white}
-
 \if@solutions
-	\@makeORMCbox{solution}{Solution}{ored!10!white}{ored}
-	\@makeORMCbox{instructornote}{Note for Instructors}{ocyan!10!white}{ocyan}
+	\newenvironment{solution}{
+		\begin{ORMCbox}{Solution}{ored!10!white}{ored}
+	} {
+		\end{ORMCbox}
+	}
+	\newenvironment{instructornote}{
+		\begin{ORMCbox}{Note for Instructors}{ocyan!10!white}{ocyan}
+	} {
+		\end{ORMCbox}
+	}
 \else
 	\excludecomment{solution}
 	\excludecomment{instructornote}