I can't speak on the style chooser.
But I can say that the wrapper issue has been here for a long time.
every time you import a style using a wrapper with dropshadow, it will import a duplicate wrapper.
Dropshadow was a common wrapper name that was modified for custom styles at the time.
If you look they may all be called dropshadow but have a different id number. Also they may have different html formats
So for the wrappers you need to view your active styles. determine what wrappers they use.
Ensure it does in fact work with your style
Then delete the wrappers that are not used.
