BETA BETA BETA - Still massively unperformant, since it re-highlights everything on any change.
This is my rainbow delimiter package.
Prismatic Parens: Toggle turns it on.
If you want to have it always turned on, put
prismatic-parens:toggle in your init.coffee
Lots more to come, including custom themes and support for delimiters other than brackets, braces, and parentheses.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.