diff --git a/examples/hey-pingu.tex b/examples/hey-pingu.tex
index 0830213..8a0aa78 100644
--- a/examples/hey-pingu.tex
+++ b/examples/hey-pingu.tex
@@ -21,7 +21,7 @@
 \colorlet{@}{Green}
 \def\K#1{\tikzmarknode{#1}{\color{@}\ttfamily#1}}
 
-\tikzset{W/.style={every path/.append style={line cap=round,-Kite,draw,lightgray!87!@},transparency group,opacity=.6}}
+\tikzset{W/.style={every path/.append style={line cap=round,-Kite,very thick,draw,lightgray!87!@},transparency group,opacity=.6}}
 
 \begin{document}
 \preview