This extension adds some additional features and fixes some bugs in VS Code's default SCSS grammar.
BEM-style __element and --modifier fragments tokenized as class names (for use with the ampersand, interpolation, etc.)
null and boolean values tokenized as language constants
Added recognition for Angular-specific pseudo-selectors :host-context and ::ng-deep
Fixed content and cursor property names being tokenized as tag selectors
Fixed background being tokenized as an invalid/deprecated keyword in certain contexts
Fixed color being tokenized as a property value keyword instead of a property name in certain contexts
CSS3 variable definitions are now erroneously tokenized as class names/BEM modifiers. This is a relatively minor issue in my opinion, since for most use cases Sass variables are preferred over CSS variables.