Stop stack sketch from moving between frame 1-2

slides.tex

@@ -33,6 +33,12 @@
 \setbeamertemplate{navigation symbols}{}
 \setbeamertemplate{headline}{}
 
+\definecolor{infoboxbg}{HTML}{f3e7ac}
+\definecolor{infoboxborder}{HTML}{de9758}
+
+\definecolor{alertboxbg}{HTML}{ffc6c7}
+\definecolor{alertboxborder}{HTML}{ea2f61}
+
 \newcommand{\cmark}{\color{OliveGreen}\ding{52}}
 \newcommand{\xmark}{\color{BrickRed}\ding{56}}
 
@@ -179,11 +185,16 @@ Segmentation fault.
                 \textbf{\Large How does it work?}
             \end{center}
         \end{column}
+        \hfill
         \begin{column}{0.35\textwidth}
-            \pause{}
-            \includegraphics[width=0.95\linewidth]{img/call_stack}
         \end{column}
     \end{columns}
+
+    \only<4->{
+        \begin{textblock*}{0.35\textwidth}[1,0.5](0.9\paperwidth,0.5\paperheight)%
+            \includegraphics[width=0.95\linewidth]{img/call_stack}
+        \end{textblock*}
+    }
 \end{frame}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -191,7 +202,7 @@ Segmentation fault.
 
 \begin{frame}
     \begin{columns}[c]
-        \begin{column}{0.65\textwidth}
+        \begin{column}{0.55\textwidth}
             \begin{center}
                 \large\bf
                 How do we get\\
@@ -203,10 +214,14 @@ Segmentation fault.
 
             \end{center}
         \end{column}
+        \hfill
         \begin{column}{0.35\textwidth}
-            \includegraphics[width=0.95\linewidth]{img/call_stack}
         \end{column}
     \end{columns}
+
+    \begin{textblock*}{0.35\textwidth}[1,0.5](0.9\paperwidth,0.5\paperheight)%
+        \includegraphics[width=0.95\linewidth]{img/call_stack}
+    \end{textblock*}
 \end{frame}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -283,8 +298,10 @@ Segmentation fault.
 \end{frame}
 
 \begin{frame}{What does this imply?}
-    Your compiler actually generates codes for \alert{two machines}:\\
-    your processor and the DWARF VM\@.
+    \begin{center}
+        \textbf{Your compiler generates code for \alert{two machines}:\\
+        your processor and the DWARF VM\@.}
+    \end{center}
 
     \vfill{}
     \begin{columns}
@@ -310,6 +327,8 @@ Segmentation fault.
             \end{center}
         \end{column}
 
+        \pause{}
+
         \begin{column}{0.55\textwidth}
             \begin{itemize}
                 \item[$\implies$] \alert{Cumbersome} to generate for the
@@ -325,6 +344,7 @@ Segmentation fault.
 
         \end{column}
     \end{columns}
+    \vfill{}
 \end{frame}
 
 \begin{frame}
@@ -332,7 +352,7 @@ Segmentation fault.
 
     \only<2>{
         \begin{textblock*}{0.60\textwidth}[0.5,0.5](0.5\paperwidth,0.5\paperheight)%
-            \begin{tcolorbox}[halign=center, colframe=OliveGreen, colback=YellowGreen]
+            \begin{tcolorbox}[halign=center, colframe=infoboxborder, colback=infoboxbg]
                 In \prog{glibc}, \prog{lowlevellock.h}:
                 \alert{off by one error in unwinding data}.
 
@@ -343,7 +363,7 @@ Segmentation fault.
 
     \only<3->{
         \begin{textblock*}{0.90\textwidth}[0.5,0](0.5\paperwidth,0.10\paperheight)%
-            \begin{tcolorbox}[halign=center, colframe=red, colback=Lavender]
+            \begin{tcolorbox}[halign=center, colframe=alertboxborder, colback=alertboxbg]
                 \bf \LARGE
                 Complex \,\& \,slow
             \end{tcolorbox}
@@ -352,11 +372,11 @@ Segmentation fault.
 
     \only<4->{
         \begin{textblock*}{0.90\textwidth}[0.5,0](0.5\paperwidth,0.30\paperheight)%
-            \begin{tcolorbox}[halign=center, colframe=red, colback=Lavender]
+            \begin{tcolorbox}[halign=center, colframe=alertboxborder, colback=alertboxbg]
                 \LARGE
                 \textbf{Pervasive:}\\ relied upon by profilers, debuggers,
                 aaand\ldots{}
-                \onslide<4->{
+                \onslide<5->{
                     C++ exceptions. \\
                     \medskip{}
                 \textbf{$\leadsto$ not only for debuggers!}}
@@ -446,7 +466,7 @@ Segmentation fault.
 
         {\only<3>{
                 \begin{textblock*}{\textwidth}[0.5,0.5](0.5\paperwidth,0.5\paperheight)%
-			\begin{tcolorbox}[halign=center, colframe=red, colback=Lavender]
+                    \begin{tcolorbox}[halign=center, colframe=alertboxborder, colback=alertboxbg]
                         \large
                         \alert{\bf Assumptions}
                         \vspace{0.6em}
@@ -512,7 +532,7 @@ Segmentation fault.
     \end{itemize}
 
     \vspace{1em}
-    \begin{tcolorbox}[halign=center, colframe=OliveGreen, colback=YellowGreen]
+    \begin{tcolorbox}[halign=center, colframe=infoboxborder, colback=infoboxbg]
         \large
         Implemented on top of CMU's \prog{BAP}
     \end{tcolorbox}