What is the sidebar in game analysis? - Chess Forums

I am watching game analysis and I wonder what is this sidebar that displays black and white color and some numbers? And why did it change so rapidly when black made this move?

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Game eval lines not showing up? - Chess Forums

How to have a custom sidebar thing on your blogs - Chess Forums

Varients with bots - Chess Forums

The case against using computer chess engines during games on stream. - Chess Forums

How do I get back to the sidebar menu? - Chess Forums

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Sidebar doesn't work - Chess Forums

Can we have game analysis back? - Chess Forums

Orda Chess, Board Game