handling of dark/light colors agree with wxMSW and wxGTK, i.e. dark -> black, light -> white. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20748 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
handling of dark/light colors agree with wxMSW and wxGTK, i.e. dark -> black, light -> white. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20748 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775