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Re:Tree-sitter: an incremental parsing system for programmin... by srcreigh on Monday February 22, 2021 @12:57PM (#26227748)
There is an emacs package for this (maybe beta). I can't remember the name of it and Google is failing me.

EDIT: finally found it https://github.com/alphapapa/prism.el

Re:Tree-sitter: an incremental parsing system for programmin... by jackcviers3 on Monday February 22, 2021 @01:19PM (#26228085)
Rainbow delimiters mode kind of does this, but doesn't maintain the scope color of referenced variables.