diff --git a/README.md b/README.md
index 84ac518..30ca572 100644
--- a/README.md
+++ b/README.md
@@ -71,3 +71,7 @@ The [preloads](https://github.com/clojure/clojurescript/wiki/Compiler-Options#pr
 ## Developing/Contributing
 
 If you want to work on re-frame-trace, see [DEVELOPERS.md](DEVELOPERS.md).
+
+## Citations
+
+[open](https://thenounproject.com/search/?q=popout&i=334227) by Bluetip Design from the Noun Project
diff --git a/resources/day8/re_frame/trace/images/open-external.svg b/resources/day8/re_frame/trace/images/open-external.svg
new file mode 100644
index 0000000..cb55e5b
--- /dev/null
+++ b/resources/day8/re_frame/trace/images/open-external.svg
@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 8" x="0px" y="0px">
+    <path d="M0 0v8h8v-2h-1v1h-6v-6h1v-1h-2zm4 0l1.5 1.5-2.5 2.5 1 1 2.5-2.5 1.5 1.5v-4h-4z"/>
+    <text x="0" y="23" fill="#000000" font-size="5px" font-weight="bold"
+          font-family="'Helvetica Neue', Helvetica, Arial-Unicode, Arial, Sans-serif">Created by Bluetip Design
+    </text>
+    <text x="0" y="28" fill="#000000" font-size="5px" font-weight="bold"
+          font-family="'Helvetica Neue', Helvetica, Arial-Unicode, Arial, Sans-serif">from the Noun Project
+    </text>
+</svg>