The best default behaviour seems to be to use white background for multiline text controls even when they're read-only, as in previous wx versions. Also see #11521 which could be implemented to make this configurable. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62804 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775