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568e7b7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | #!/usr/bin/env python3
"""Generate the Android/PWA icon set for Cadence.
Brand: three rising waveform bars on a violet→cyan gradient, dark rounded tile.
Maskable variants keep everything inside the 80% safe zone Android crops to.
"""
from pathlib import Path
from PIL import Image, ImageDraw
OUT = Path(__file__).resolve().parent / "icons"
OUT.mkdir(exist_ok=True)
S = 1024
VIOLET = (139, 92, 246)
CYAN = (34, 211, 238)
BG = (10, 10, 18)
def gradient(size, c1, c2):
img = Image.new("RGB", (size, size))
d = ImageDraw.Draw(img)
for i in range(size):
t = i / max(1, size - 1)
d.line([(0, i), (size, i)], fill=tuple(int(c1[k] + (c2[k] - c1[k]) * t) for k in range(3)))
return img
def bars(draw, size, scale=1.0, color=(255, 255, 255, 240)):
"""Three rounded bars of increasing height, centred."""
cx, cy = size / 2, size / 2
bar_w = size * 0.088 * scale
gap = size * 0.055 * scale
heights = [0.34, 0.52, 0.42]
total = 3 * bar_w + 2 * gap
x = cx - total / 2
for h in heights:
bh = size * h * scale
r = bar_w / 2
draw.rounded_rectangle([x, cy - bh / 2, x + bar_w, cy + bh / 2], radius=r, fill=color)
x += bar_w + gap
def tile(size, maskable=False):
pad = int(size * 0.10) if maskable else 0
inner = size - 2 * pad
img = Image.new("RGBA", (size, size), (0, 0, 0, 0))
if maskable:
img.paste(Image.new("RGBA", (size, size), BG + (255,)), (0, 0))
grad = gradient(inner, VIOLET, CYAN).convert("RGBA")
# darken the gradient a little so white bars read clearly
overlay = Image.new("RGBA", (inner, inner), (8, 8, 14, 120))
grad = Image.alpha_composite(grad, overlay)
if maskable:
img.paste(grad, (pad, pad))
else:
mask = Image.new("L", (inner, inner), 0)
ImageDraw.Draw(mask).rounded_rectangle([0, 0, inner - 1, inner - 1], radius=int(inner * 0.22), fill=255)
img.paste(grad, (0, 0), mask)
d = ImageDraw.Draw(img)
bars(d, inner, scale=0.92, color=(255, 255, 255, 245)) if not maskable else None
if maskable:
layer = Image.new("RGBA", (inner, inner), (0, 0, 0, 0))
bars(ImageDraw.Draw(layer), inner, scale=0.78, color=(255, 255, 255, 245))
img.paste(layer, (pad, pad), layer)
return img
def save(img, name):
img.save(OUT / name, optimize=True)
print(f" {name:32s} {img.size[0]}×{img.size[1]}")
print("icons →")
save(tile(S), "icon-1024.png")
for s in (512, 192, 180, 128, 96):
save(tile(S).resize((s, s), Image.LANCZOS), f"icon-{s}.png")
save(tile(S, maskable=True).resize((512, 512), Image.LANCZOS), "icon-maskable-512.png")
save(tile(S).resize((180, 180), Image.LANCZOS), "apple-touch-icon.png")
# favicon
save(tile(S).resize((64, 64), Image.LANCZOS), "favicon-64.png")
print("done")
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