I was testing all pages under the Controls sections in /rt/apps/samples/Ensemble8/src/app/java/ensemble/EnsembleApp.java

and there are couple pages the sample controls are not centered:
HyperLink - Left aligned. Also, the second sample (hyperlink control + gaphics) the text was truncated.
Radio buttons - the content is a weird place, on top and somewhat off to the left.

For the remaining pages in the section the alignment was much more consistent.