Hi @ellif, I assume this is about this area?:

@ellif: If you are curious and want to try adding these changes yourself by writing a software change and put it into Gerrit, then please follow https://wikitech.wikimedia.org/wiki/Wikimedia_site_requests#Add_additional_letters_to_the_special_characters_toolbar and give it a try!

ᅟI feeling of frustration. The purpose of this request is to improve Mediawiki for Korean Wikimedia and Mediawiki users. If This request was for Individual, I find out mediawiki.org and trying to change the code.

@Aklapper: So, Are you saying that You have to change the code of MediaWiki itself?

@ellif: I don't understand what is frustrating (or why), but maybe we have a misunderstanding here? I wrote that you or anyone else who is interested can make this code change in MediaWiki, and I explained how you or anyone else can make this code change in MediaWiki (not for individuals, but for everyone).

Change 655286 had a related patch set uploaded (by Shubham656jain; owner: Shubham656jain):
[mediawiki/core@master] Add new special characters in specialcharacters.json

https://gerrit.wikimedia.org/r/655286

Thanks @Shubham656jain! I'd maybe change the commit message to Add special characters useful in Korean (to better differentiate), plus not mention the filename? See also https://www.mediawiki.org/wiki/Gerrit/Commit_message_guidelines . I'd expect most edits in that file add/edit new special characters...

@Aklapper Done. Thanks!

Some bugs are inside the submit. ¹. ², ³, ―, and ½ have their own characters. And some characters have to be like this.

{
			"label": "〈〉",
			"action": {
				"type": "encapsulate",
				"options": {
					"pre": "〈",
					"post": "〉"
				}
			}
		},
{
			"label": "《》",
			"action": {
				"type": "encapsulate",
				"options": {
					"pre": "《",
					"post": "》"
				}
			}
		},

@ellif Done. Please review.

Change 655286 merged by jenkins-bot:
[mediawiki/core@master] mediawiki.language: Add special characters useful in Korean

https://gerrit.wikimedia.org/r/655286

OK, this is merging now and will roll out to production wikis next week; for Korean Wikipedia, this should be on 2021-01-21 (UTC).

Thank you everybody! <3

Hello. Can I update one version more? I tried to adjust the order of symbols.

If you are have intend, You can include four mour characters. I tried other file make it more.

「 (U+300C) LEFT CORNER BRACKET
」 (U+300D) RIGHT CORNER BRACKET
『 (U+300E) LEFT WHITE CORNER BRACKET
』 (U+300F) RIGHT WHITE CORNER BRACKET

Thank you for reviewing in advance.

Hi @ellif, please file a new ticket for a new request. This request is already resolved, and we do not change the scope of a task after resolving it.
Thanks a lot! :)