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+(work in progress) Also see [[Tips]].
+
+### Metrics/Debugger window
+
+Many internal state and tools are exposed in the Metrics window. To access the Metrics window:
+- Call `ShowMetricsWindow()`.
+- Or from the Demo window you can find it in the Tools menu.
+They will help you understand how Dear ImGui works, and can help you diagnose problems.
+
+![Metrics](https://user-images.githubusercontent.com/8225057/191290900-87c7f347-d459-4192-8894-689c11b44e65.png)
+
+![debug tools](https://user-images.githubusercontent.com/8225057/174845561-ee9ba6ad-9f48-478c-944d-85334aae0af7.png)
+_Some of the debug tools_
+
+### Debug Log
+
+![Debug Log](https://user-images.githubusercontent.com/8225057/191291345-9bf5fae2-ff0f-462a-af4c-d85aaaf36318.png)
+
+### Stack Tool
+
+![stack_tool_03](https://user-images.githubusercontent.com/8225057/136235657-a0ea5665-dcd1-423f-9be6-dc3f8ced8f12.png)
+
+### Item Picker
+
+The Item Picker will allow you to pick an item with the mouse and have Dear ImGui break within the call-stack of that item. This is useful if you have large UI / codebase and you would to easily find out where some UI item is emitted. 
+You can find it in _Metrics>Tools>Item Picker_. Also see [#2673](https://github.com/ocornut/imgui/issues/2673).
+
+![Item Picker](https://user-images.githubusercontent.com/8225057/61412736-7d2e5b80-a89e-11e9-9bb3-54c097025abe.png)