diff --git a/png/duo.png b/png/duo.png
new file mode 100644
index 00000000..834212cf
Binary files /dev/null and b/png/duo.png differ
diff --git a/svg/duo.svg b/svg/duo.svg
new file mode 100644
index 00000000..c9572b48
--- /dev/null
+++ b/svg/duo.svg
@@ -0,0 +1,72 @@
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