diff --git a/todo/TODO.md b/todo/TODO.md
index a34d9548f..47f6024ce 100644
--- a/todo/TODO.md
+++ b/todo/TODO.md
@@ -18,6 +18,7 @@
   - Auto-adapts to any DPI (100%-300%)
   - Dark/light mode color switching
   - Keep classic bitmap as fallback (ToolBarTheme 0/1)
+  - Issues: [#5471](https://github.com/rizonesoft/Notepad3/issues/5471) (blurred icons at DPI scale)
   - See [research/svg-toolbar.md](research/svg-toolbar.md)
 - [ ] **EditorConfig Integration** - Apply `.editorconfig` settings on file open
   - Use [editorconfig-core-c](https://github.com/editorconfig/editorconfig-core-c) library