OpenDXF

• 3D DXF support: Files with 3DFACE entities or Z-axis coordinates are now rendered in three dimensions. Tap the "3D" button in the toolbar to switch between 2D and 3D view; drag to orbit the model in 3D mode. • Layer panel: Toggle individual layers on or off, with separate management for dimension layers. • DXF files now load on a background thread — the interface stays responsive and shows a loading indicator. • Opening a corrupted or unreadable file shows a descriptive error message without discarding the current drawing. • Mac: The window title now displays the name of the open file. • Mac: Added keyboard shortcuts — Cmd+O (open), Cmd+0 (fit to screen), Cmd+L (layers). • Mac: The application now quits correctly when its window is closed. • Stability and performance improvements.