diff --git a/icons/underline.svg b/icons/underline.svg
new file mode 100644
index 0000000..592290a
--- /dev/null
+++ b/icons/underline.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><path d="M6,3v7a6,6,0,0,0,6,6h0a6,6,0,0,0,6-6V3" fill="none" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"/><line x1="4" y1="21" x2="20" y2="21" fill="none" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"/></svg>
\ No newline at end of file