Generates 52 face PNGs (4 suits × 13 ranks) + 5 back PNGs
into assets/cards/. Implements step 2 of the migration plan
in docs/ui-mockups/card-face-migration.md — the bytes this
emits are what step 4 commits alongside the card_plugin
constant migration.
Filled vs outlined glyphs (♥♠ filled; ♦♣ outlined) implement
the always-on color-blind glyph differentiation from the
design system. The 5 back themes share the canonical
Terminal scanline pattern but rotate the badge accent
through the base16-eighties palette so all 5 slots stay
distinguishable without leaving the palette.
Run with: cargo run --example card_face_generator --release
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>