0.11.10 — both edges

Version 0.11.9 was meant to fix a panel running off the screen. It fixed half of it, and the next screenshot from the phone showed the rest: the panel was still cut off, just on the other side.

The previous version made sure the right edge of the panel stayed inside the window. It said nothing about the left one. **The button sits roughly halfway along the bar**, so a panel of fixed width — three hundred and twenty pixels — pinned by its right side to that button reaches far past the screen on its left. Exactly as before, for a different reason.

The offset from the right edge now has a lower and an upper bound: the lower one keeps the panel's right side inside the window, the upper one keeps its left side there. On a narrow screen the second wins and the panel simply comes to rest against the left margin, dropping the pretence that it hangs under the button.

The lesson worth keeping: **clamping to the window on one side is not clamping to the window.** An element of fixed width, anchored to something standing in the middle of the screen, always sticks out — the only question is which way.