wxMac:
+- Vertical sliders oriented consistent with MSW/GTK (0 at top) (Kevin Hock)
- wxDynamicLibrary::GetDllExt() now returns ".bundle", not ".dylib"
- wxDynamicLibrary::GetSymbol() now prepends underscore to the symbol name
- native wxProgressDialog implementation
- native wxColourDialog implementation
- native wxSystemSettings colours
+- native wxButton implementation
+- native wxCheckBox implementation
+- native wxSlider implementation
+- native wxToggleButton implementation
+- native wxRadioButton implementation
+- native wxStaticText implementation
2.5.3