Where to find a list of scopes for Sublime2 (or textMate?)

Question

in .tmTheme files the scope key defines how a element is highlighted:

    
        name
        HTML: Attribute          


        

Answer 1

In addition to the excellent answers already posted, the Scopes Stats tab of TMTheme Editor displays a useful list of all the scopes in its 236 colour themes, with the most commonly-supported scopes at the top.