How chess.com videos was made?

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Chessplayer6464

Chess.com videos are very great. I just wonder, how these videos was made? Clearly somekind special chess software was used. Videos include arrows, highlighted squares with several colors etc..

I think, I've seen also somewhere (not normal video lessons area) on this site under 2000 rated user videos too. Is there a tool, what user can use and make own video for private purposes or "just showing something to another users"? Or are these video making tools only for staff?