This dark syntax theme is based on visual studio 2015 community edition dark theme. I would recommend using a UI theme based around visual studio and using Consolas as the font.
All the examples are taken from the Meteor.js tutorial page. Ass you can also see the theme supports handlebars used in meteor, but you will need the meteor-api package for it to work properly.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.