The biggest differentiator is that ChatGrape integrates (and attaches) all your issues, files and documents automatically as you type. We call this Deep Service Integration. This way, you'll never again lose time searching for documents or issues you're trying to reference ;)
Yeah - But I think you can do some of that stuff with the built-in Firefox Inspector. Just right-click and hit Inspect. On the right side of the toolbar click Style. You can try out styles there.
