1 files changed, 27 insertions, 21 deletions
diff --git a/tex/src/preamble-pgfplots.tex b/tex/src/preamble-pgfplots.tex
index 05e73b7..0c0485c 100644
--- a/tex/src/preamble-pgfplots.tex
+++ b/tex/src/preamble-pgfplots.tex
@@ -126,29 +126,45 @@
 
 
 %% Nodes in demo graphs
-\tikzset{node-terminal/.style={
+
+%% sub-Makefiles.
+\tikzset{node-makefile/.style={
+  thick,
+  rectangle,
+  anchor=north,
+  minimum height=4.7cm,
+  minimum width=2.1cm,
+  draw=green!50!black!50,
+  fill=black!10!green!12!white}}
+
+%% Input files (green, sharp-edged boxes).
+\tikzset{node-nonterminal/.style={
   rectangle,
   very thick,
-  draw=blue!50,
+  anchor=north,
   text centered,
   top color=white,
-  minimum size=6mm,
-  text width=2.1cm,
-  rounded corners=3mm,
-  bottom color=blue!20,
+  text width=1.7cm,
+  minimum height=4mm,
+  draw=green!50!black!50,
+  bottom color=green!80!black!50,
   font=\ttfamily}}
 
-\tikzset{node-nonterminal/.style={
+\tikzset{node-terminal/.style={
   rectangle,
   very thick,
+  draw=blue!50,
   text centered,
   top color=white,
-  text width=2.1cm,
-  minimum size=6mm,
-  draw=green!50!black!50,
-  bottom color=green!80!black!50,
+  text width=1.7cm,
+  minimum height=4mm,
+  rounded corners=2mm,
+  bottom color=blue!20,
   font=\ttfamily}}
 
+
+%%%%%%%%%%%%%%%%%%%
+
 \tikzset{node-nonterminal-thin/.style={
   rectangle,
   thick,
@@ -160,16 +176,6 @@
   bottom color=green!80!black!50,
   font=\ttfamily\scriptsize}}
 
-\tikzset{node-makefile/.style={
-  thick,
-  rectangle,
-  anchor=south,
-  minimum width=2.6cm,
-  minimum height=5cm,
-  draw=green!50!black!50,
-  fill=black!10!green!12!white,
-}}
-
 \tikzset{node-point/.style={
   circle,
   black!50,