User:GhostInTheMachine/GraphicReplyLink.js

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This user script seems to have a documentation page at User:GhostInTheMachine/GraphicReplyLink.

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// replace the text reply link with a better-looking Speech balloon emoji and slightly reduce the height
$( ".ext-discussiontools-init-replylink-reply" ).text('💬');
$( ".ext-discussiontools-init-replylink-bracket" ).text('');
mw.util.addCSS('.ext-discussiontools-init-replylink-buttons { height: 1.2em; }');