Added a Settings window (App menu → Settings…) with General and Export panes.
General settings now include a System/Light/Dark theme picker — the app follows your choice everywhere, including a relaunch.
The Builder viewport shows a small progress indicator while a model is being rebuilt, so a bake in progress is no longer silent.
If a shape can’t be built cleanly (e.g. a boolean operation produces a degenerate result), Chamfered now shows an alert and leaves that shape out of the model instead of failing silently. Try adjusting the shape’s size or position slightly.
Fixed
Fixed a crash that could occur when inserting a new element between two containers (e.g. two Parts) in the Builder outline.
Polish
Minor visual refinements to the Builder’s element rows (selection border and background).