@binding-set SWTTreeViewBinding { bind "Left" { "expand-collapse-cursor-row" (0,0,0)}; bind "Right" { "expand-collapse-cursor-row" (0,1,0)}; } treeview { -gtk-key-bindings: SWTTreeViewBinding; } scrolledwindow undershoot.top, scrolledwindow undershoot.right, scrolledwindow undershoot.bottom, scrolledwindow undershoot.left { background-image: none; }