Previous approach injected ::view-transition-new animation in vt.ready,
creating a timing gap where the NEW layer had no clip-path and was fully
visible, making dark→light transitions invisible.
Now:
- Inject <style> with @keyframes + VT pseudo-element rules BEFORE
calling startViewTransition, so styles are ready when pseudo-elements
are created.
- Force synchronous getComputedStyle() in VT callback to ensure the
NEW snapshot captures final background-color, not a mid-transition
value.
xfy
b542952619