Ported from smart-serow's HUD: the four-colour palette with dark/bright variants
(same theme JSON format, loaded at runtime; YUKART_THEME picks one), StatBox and
StatBoxMain, WhiskeyMark and AccelGraph. The whole app takes its colours from the
palette. Dash: attitude, G-meter, RPM, GNSS speed, pedal, coolant and telltales,
each from its contracts signal; missing and stale draw in subdued.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz
