Its not an UiBinder construct because within a HTMLPanel (which the example uses as root) everything is treated as HTML unless its a UiBinder tag. So what you are seeing in the example is plain HTML with Polymer extensions like the "is" attribute.
You can read that up at: https://www.polymer-project.org/1.0/docs/devguide/registering-elements.html -- J. -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
