diff --git a/TODO.md b/TODO.md
index 92babc92..302dffe8 100644
--- a/TODO.md
+++ b/TODO.md
@@ -12,7 +12,8 @@ https://zhuanlan.zhihu.com/p/39369370
 - [x] Change `GuiControl::Font` from `FontProperties` to `Nullable<FontProperties>`. It will changes following parent controls if it is set to null. If `GuiControlHost`'s font is null, it will become the default font.
 - [x] Window Icon
   - [x] `vl::presentation::windows::SetWindowDefaultIcon`
-  - [ ] Show the default icon on default window template
+  - [ ] Add `Icon` property to window
+  - [ ] if `ShowIcon` (default true) is true then the default window template will display an icon. If the `Icon` is null then it will be retrived from the `INativeWindow`, which in Windows get the current icon.
 - [x] Fix GacGen crash when defining an instance whose name conflicts with something from imported resources
 - [x] Fix hook mouse events in ButtonTemplate make GuiButton::Click not working
 - [x] Fix list control being able to scroll by mouse while there is no scroll bar