feat(assetgen): upgrade card backs and backgrounds to 120×168 with richer patterns

Replace 16×16 placeholder PNGs with 120×168 canvas-drawn art matching card
face dimensions. Each card back has a distinctive coloured pattern (blue diamond
grid, red crosshatch, green circle array, purple concentric diamonds, teal
horizontal stripes). Each background has textured detail (green felt weave, wood
plank grain, navy star field, burgundy diagonal tile, charcoal checkerboard).
Removes the now-unused save_small_png/make_small helpers.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
funman300
2026-04-29 01:27:31 +00:00
parent 505f0ebda3
commit 2b04718f33
11 changed files with 298 additions and 53 deletions
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