# Pixel-art item icon at 64x64: same style as `pixel_icon`, larger canvas.
#
# WHY THIS EXISTS. The diffusion route generates at SDXL's native 1024px, so a
# 32px icon is a 32x downscale. Fine detail that survives the generator does not
# survive that reduction: a coin's struck emblem, a shield's radial pattern and
# a lantern's glass panes all mush at 32px and read clearly at 64px.
#
# CALIBRATION. `max_colors` is deliberately NOT raised from pixel_icon's 32.
# Measured over the 300 genuine 48x48 icons in ~/data/opengameart-downloads -- the
# largest real-art sample available locally above 32px:
#     p50=9  p75=11  p90=13  p95=13  p99=14  max=14
# Rejection rate of that real art: cap 32 -> 0.00%, and every larger cap also
# 0.00%. Hand-made art does not spend more colours just because the canvas grew,
# so raising the cap would only admit more un-quantized generator output. The
# cap stays where the corpus puts it.
#
# min_margin scales with the canvas: 1px of 32 is 3.1%, so 2px of 64 keeps the
# same proportional breathing room rather than tightening it.
name = "pixel_icon_64"
canvas = [64, 64]
max_colors = 32
alpha_binary = true
min_margin = 2

# Same gates and same ordering as pixel_icon -- see that file for why
# ALPHA_NOT_BINARY must come first.
gates = [
  "ALPHA_NOT_BINARY",
  "TOO_MANY_COLORS",
  "CANVAS_SIZE",
  "SCALE_NOT_INVARIANT",
  "SILHOUETTE_LOW_CONTRAST",
  "MARGIN_TOO_SMALL",
]