First pass README updates

1 files changed, 13 insertions, 7 deletions

diff --git a/chapter10a/docs/example1.gv b/chapter10a/docs/example1.gv
index d399b562..9585b8e4 100644
--- a/chapter10a/docs/example1.gv
+++ b/chapter10a/docs/example1.gv
@@ -1,10 +1,16 @@
 digraph Memory {
+  // IR styles match graph/web/render.js; arrows are use -> definition.
+  graph [bgcolor="#fafbfc" fontname="Helvetica" nodesep=0.35 ranksep=0.55 splines=ortho];
+  node [fontname="Helvetica" fontsize=12 color="#758191" fontcolor="#152330" shape=box style="rounded,filled" fillcolor="#edf3f7"];
+  edge [fontname="Helvetica" fontsize=9 color="#536477" fontcolor="#364352" arrowsize=0.7 penwidth=1.5];
+
   rankdir=RL;
-  node [shape=box];
-  M0 [label="Initial memory"];
-  X [label="Store p.x = 3"];
-  Y [label="Store p.y = arg"];
-  L [label="Load p.x"];
-  L -> Y -> X -> M0 [color=blue];
-  Return -> Y [color=blue]; Return -> L;
+
+  M0 [label="Initial memory" shape=octagon style="filled" fillcolor="#dcecff"];
+  X [label="Store p.x = 3" shape=octagon style="filled" fillcolor="#dcecff"];
+  Y [label="Store p.y = arg" shape=octagon style="filled" fillcolor="#dcecff"];
+  L [label="Load p.x" shape=box style="rounded,filled" fillcolor="#edf3f7"];
+  L -> Y -> X -> M0 [color="#2867b2"];
+  Return -> Y [color="#2867b2"]; Return -> L;
+  Return [shape=box style="filled" fillcolor="#fff1c4"];
 }