laughinghan/mathquill — pull request #1 by laughinghan (2014-03-09 07:28:47+00:00)
Title: Feature: auto-expanding parens: hidden ghost

Ghost parens now only be visibly marked (by being gray instead of black) when you're directly inside it (not when nested in something that is itself in the paren group) or in the block containing the parens. That way, they're black unless you could possibly close or delete a one-sided paren.