9. October 2011 06:41
these instructions are not required for Atmel Studio versions, Atmel users please install visual micro version 1305.21 +, syntax color configuration is automatic for atmel users. It should just work out of the box!
1. Open the Visual Studio Tools>Options
2. Navigate to Text Editor>File Extensions
3. Add the INO and PDE extensions setting the Editor to "Microsoft Visual C++" for each
4. Click OK and re-open any open sketch code files
This is what you should see once you have made the changes