That demo does not use any of the techniques described in this article. Everything in that demo is done using character mode, the standard charset, and the 8 cu

That demo does not use any of the techniques described in this article. Everything in that demo is done using character mode, the standard charset, and the 8 customizable characters. If you look closely you'll see there are never more than 8 or so distinct nonstandard character glyphs on screen.