VSCT files
- Intellisense for custom GUIDs
- Intellisense for custom IDs
- Intellisense for built-in groups and menus
- Snippets
- Auto-sync VSCT commands
Editor margin
- Document encoding
- Content type
- Classifications
Pkgdef files
- Syntax highlighting
- Intellisense
- Snippets
- Brace matching
- Formatting