Hi Steffen,
Thank you for your interest in Syncfusion products.
We have created sample as you expected. Please download the sample from the below link:
http://websamples.syncfusion.com/samples/Edit/F70031/main.htmYou can get more regarding this from the Browser sample from the below link:
\\Syncfusion\EssentialStudio\5.2.0.25\Windows\Edit.Windows\Samples\2.0\Syntax Highlighting\SyntaxColoringDemo
Please let me know if you have any other queries.
Best Regards,
Bhuvana