diff --git a/TODO.md b/TODO.md
index 120beef5..aa77b9f6 100644
--- a/TODO.md
+++ b/TODO.md
@@ -6,6 +6,7 @@ https://zhuanlan.zhihu.com/p/39369370
 
 - [ ] High DPI for Direct2D (GDI will blur)
 - [ ] Window Icon
+- [ ] Use another way to create focus rectangle bitmap mask for Direct2D
 - [ ] **Update Release**
 - [ ] New default control templates with animation, written in XML generated C++ code.
 - [ ] A window can be called to update all its controls' and components' template