- Real time on-screen debug overlay to display performance metrics.
Overlay can be toggled with C-d.
[Fixed]
- Corrects a "click-through" bug by implementing Z-ordering for window
stack.
- Decouples taskbar from window z-order to provide a stable button
layout that isn't affected by focus changes.
- Adds culling to the terminal history view to prevent rendering
off-screen lines.
