Hi~
To meet my job needs, I just start to use Polymer and then found there is no highlighting plugin in Sublime Text to fit Polymer syntax completely. (such as the `$=` separator in HTML attributes, and the scope braces of data-binding - `[[]]` and `{{}}`, etc.)
TRY this! If you use both Sublime Text and Polymer to develop something for now. :)
Don't hesitate your **Star**, and PRs are welcome.