sorry, it should be 2 PRs.

I dont know if the examples were Han, (ideogram? logogram?), so I put the safe "character".
Chinese "Hieroglyphic" is wrong, it's specific for the ancient "sacred" Egyptian writting.

I added " ... (4 hex digits)"
because you start talking about hex, then jumped to bytes unit.

"the reason being"
"the reason is" looks simpler, yet correct I think

The wikipedia says: In a written language, a logogram, logograph, or lexigraph is a written character that represents a word or morpheme. Chinese characters (pronounced hanzi in Mandarin, kanji in Japanese, hanja in Korean) are generally logograms, as are many hieroglyphic and cuneiform characters.

So the word "hieroglyphic" is used here, maybe keep it? Much more people will understand this word, rather than the scientific "logographic" =)

yes, and they will understand wrong
because they all are wrong

but...
logogram is odd.
I'd use ideograph...
wtheck, you are right, the first jeroglifo stays.
but the chinese hieroglyph shouldnt

Sorry I don't get it =)

Why 𩷶' can't be called "a rare chinese hieroglyph"?

Oh, I see, that's the wrong word to describe them?

So we should say "logogram"... Or character.

correct, hieroglyphics is ancient egyptian.

but I liked to leave the first mention to it
everyone loves hieroglyphics