I'm using the GridTreeViewer on Window 7. The tree shows +/- and lines connection between parent and children nodes. While the native OS LAF is little triangles for expand/collapse, and no parent/children lines.
I have a regular tree view side by side with the grid view, and it's looking in-consistent.
Thanks. I was looking the cell renderers and realized that. I pulled the BranchRenderer so not to draw the lines between parent/children but will probably keep the +/- signs until I need to have custom rendering for each platform.