Release v4.10.1

Summary

ToggleGroup renders radiogroup/radio for single selection but left every option in the tab order, so a four-option group cost four tab stops and a form with four of them sixteen. A radio group is a single stop: Tab moves into and out of it, the arrow keys move within it.

Fixed

• A single-selection ToggleGroup is one tab stop. The selected option carries it — or the first enabled option when the value matches none — and it follows the selection as it changes. Arrow-key movement and Space/Enter committing are unchanged. (#292)