Fixed crash after loading some particular dxf.
Fixed crash after trying to manually insert a rectangular piece.
Shows the number of shapes (polygons and circles) in the status bar of the Manual Drawing window.
Add the Cut higher-level strips first option for Multi-Stage rectangular cutting optimization. This will only affect the order or cuts. If this option is set, then all level 0 cuts are performed first, then all level 1 cuts, and so on.
Improved the multi-stage rectangular cutting algorithm.
MacOS only: fix cursor getting reset to default on next mouse event.