I would like to change the size of the
OpenerView when using Mathematica 10. In Mathematica 8, there was the option
Appearance->Tiny for example that allowed to have a small
In Mathematica 10 this option still exists but is not documented and has no effect, as the default opener seems to have a fixed size.
Is there a way to get the old small MM 8 appearance for
OpenerView in MM 10 ?