Feature Request: Support visualization of non-standard whitespace characters (Unicode whitespaces)

[dsanke]

Name	Object	Encode
IDSP		\u3000
NNBSP		\u202F
MSP		\u205F
1/4 SP		\u2005

[zufuliu]

These are not control/format/invisible characters, especially U+3000 (Ideographic space, CJK fullwidth space).

[dsanke]

ctrl + shift + 8 can not show such whitespaces

[zufuliu]

ctrl + shift + 8 can not show such whitespaces

So, I misunderstand the request, think it's about adding Unicode control character.