What is the purpose of the image viewer in the HP ProBook 440 G8 LED Diagnostic tool?

The image viewer displays a menu of the product's external views and allows users to visually identify the location of each LED on the laptop. By clicking on a specific view, users can see exactly where each LED is positioned on that side of the device. (Page 1)

From the official HP Probook 440 G8 Notebook PC manual, page 1

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