Make root_, context_ , parent_ ,items_ and heading_ uiLayout into private members. Follow up from recent UI refactors. Part of: #117604 Pull Request: https://projects.blender.org/blender/blender/pulls/145698
Make root_, context_ , parent_ ,items_ and heading_ uiLayout into private members. Follow up from recent UI refactors. Part of: #117604 Pull Request: https://projects.blender.org/blender/blender/pulls/145698