How to use Dev tools which flashes momentary pink rectangle on any screen sections being redrawn?

How to use Dev tools which flashes momentary pink rectangle on any screen sections being redrawn?

Tool description is given at http://developer.android.com/guid开发者_JS百科e/developing/debug-tasks.html

Could anybody please suggest me where to install this tool and how to use it?

Thanks, Mahesh

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Emulator has a package named Dev tools installed.

Go to : Dev Tools -> devlopment Settings -> check show screen updates.

This will show all the repaints in pink.