From bug [ 1426757 ] Mac OS X floating windows.
The widgets palette, tree view, and properties windows
should be made "floating" windows on OS X. As they are
"document" windows currently, they take two clicks to
access- one to give them the focus and then one to
access the item you are after. Hopefully this isn't too
difficult to implement. Thank you.
repository and tickets moved to GitHub: https://github.com/wxGlade/wxGlade/issues/33