The Shape Library, drawing library and drawing set preview each drew
parts their own way (hardcoded green fill, steel-blue fallback, black
outlines with gray etch). They now share a library style on ColorScheme
(background, fill, outline, etch and bend colors) that ignores drawing
colors, follows the active scheme (Dark gets a dark variant) and
round-trips through saved schemes, defaulting when absent. Nest part
colors are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
