These are the marks as they are actually drawn. The language is written with real characters, the same kind a keyboard produces, and z0glyphic913 is the font made to give those characters their face. A font is the file that decides how a character looks. If a device has this one installed, the writing appears as it was drawn. If it does not, the device substitutes a mathematics symbol that happens to sit at the same address, which is why the language can look generic somewhere else.
Everything on this page was read out of the font file, so every mark here is one the font genuinely draws. That check matters more than it sounds: a character the font has no drawing for does not appear as an error, it quietly borrows another face and looks fine.