diff --git a/resources/style.css b/resources/style.css
index b0215cf6..e21ae00e 100644
--- a/resources/style.css
+++ b/resources/style.css
@@ -1,6 +1,7 @@
 * {
     border: none;
     border-radius: 0;
+    /* `otf-font-awesome` is required to be installed for icons */
     font-family: Roboto, Helvetica, Arial, sans-serif;
     font-size: 13px;
     min-height: 0;