v1.44.0

Timer: drag the numbers into place, and colour them (v1.44.0)

A classic countdown's numbers can now be dragged on the preview into a
gap in the background - the owner's Summit graphic has a speech bubble
that is obviously where the timer goes - and sized with SIZE, with RESET
to start over. The accent colour now colours the numbers too (a WHITE
swatch, the default, keeps today's look), and background images are no
longer dimmed 45 % by default.

Untouched timers are byte-identical to v1.43.0; golden passes; 633 smoke
checks. A placed, sized, blue-numbered timer was exported and inspected.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>