- Changed z_order parameter type from uint32_t to int32_t in render_collector and its related methods.
- Updated the logic in render_collector to correctly manage z-order using int32_t.
- Adjusted the rendering command building methods across various widget classes to accommodate the new z-order type.
- Removed unused render_tree test files and updated CMakeLists.txt to reflect these changes.
nanako
491d191ab7