I’ve downloaded the demo solution, run the web forms demo with your default Tables.Source.docx & Tables.Target.docx files and it seems to work fine for text. I then modified those files to change just a font size & style, but those changes do not appear to be picked up. I also tried using my own documents with only style changes, but still did not get this working.
Nevermind, I found it. Apparently you need to explicitly tell it you’re interested in style changes via the EnableStyleChangesDetection() method.
Sorry for the delay. Yes, you are right: “.EnableStyleChangesDetection()” method is responsible for detecting styles (their differences). This feature was recently added to the GroupDocs.Comparison for .NET, and we did not updated the documentation yet. Thanks for pointing out on this issue, we will update the documentation soon.
If you will have more questions please feel free to contact us.