Generate themed (catppuccin, ethereal, everforest, gruvbox, hackerman, kanagawa, matte-black, nord, osaka-jade, ristretto, rose-pine, tokyo-night) with variants (light/dark) 2560x1080 desktop wallpapers.

generate_wallpapers.py

import os
import numpy as np
from PIL import Image, ImageEnhance, ImageFilter

# -----------------------------
# CONFIG
# -----------------------------
INPUT_IMAGE = "base.png"
OUTPUT_ROOT = "outputs"
SIZE = (2560, 1080)

os.makedirs(OUTPUT_ROOT, exist_ok=True)

base_name = os.path.splitext(os.path.basename(INPUT_IMAGE))[0]

# -----------------------------
# HELPERS
# -----------------------------
def hex_to_rgb(hex_color):
    hex_color = hex_color.lstrip("#")
    return np.array(tuple(int(hex_color[i:i+2], 16) for i in (0, 2, 4)))

def create_gradient_lut(colors):
    stops = np.linspace(0, 255, len(colors)).astype(int)
    lut = np.zeros((256, 3))

    for i in range(len(colors) - 1):
        start, end = stops[i], stops[i+1]
        c1 = hex_to_rgb(colors[i])
        c2 = hex_to_rgb(colors[i+1])

        for j in range(start, end + 1):
            t = (j - start) / max(1, (end - start))
            lut[j] = (1 - t) * c1 + t * c2

    return lut.astype(np.uint8)

def apply_gradient_map(image, lut):
    gray = image.convert("L")
    gray_np = np.array(gray)
    colored = lut[gray_np]
    return Image.fromarray(colored.astype(np.uint8))

# -----------------------------
# LIGHT / DARK ADJUSTMENTS
# -----------------------------
def adjust_light(image):
    image = ImageEnhance.Brightness(image).enhance(1.18)
    image = ImageEnhance.Contrast(image).enhance(0.92)
    image = ImageEnhance.Color(image).enhance(1.05)
    return image

def adjust_dark(image):
    image = ImageEnhance.Brightness(image).enhance(0.82)
    image = ImageEnhance.Contrast(image).enhance(1.25)
    image = ImageEnhance.Color(image).enhance(0.95)
    return image

def add_glow(image, intensity=0.1):
    blur = image.filter(ImageFilter.GaussianBlur(radius=18))
    return Image.blend(image, blur, intensity)

# -----------------------------
# TRUE LIGHT/DARK PALETTES
# (dark → light progression)
# -----------------------------
themes = {

    "catppuccin": {
        "light": ["#eff1f5", "#ccd0da", "#ea76cb", "#8839ef"],
        "dark":  ["#11111b", "#313244", "#cba6f7", "#f5c2e7"]
    },

    "gruvbox": {
        "light": ["#fbf1c7", "#ebdbb2", "#d79921", "#b57614"],
        "dark":  ["#1d2021", "#3c3836", "#fabd2f", "#fe8019"]
    },

    "nord": {
        "light": ["#eceff4", "#e5e9f0", "#81a1c1", "#5e81ac"],
        "dark":  ["#2e3440", "#3b4252", "#88c0d0", "#81a1c1"]
    },

    "tokyo-night": {
        "light": ["#e1e2e7", "#c0caf5", "#7aa2f7", "#2ac3de"],
        "dark":  ["#1a1b26", "#24283b", "#7aa2f7", "#bb9af7"]
    },

    "rose-pine": {
        "light": ["#faf4ed", "#e0def4", "#ebbcba", "#c4a7e7"],
        "dark":  ["#191724", "#26233a", "#eb6f92", "#f6c177"]
    },

    "everforest": {
        "light": ["#fdf6e3", "#e6e2cc", "#a7c080", "#83c092"],
        "dark":  ["#2b3339", "#374145", "#83c092", "#a7c080"]
    },

    "kanagawa": {
        "light": ["#f2ecbc", "#dcd7ba", "#7e9cd8", "#98bb6c"],
        "dark":  ["#1f1f28", "#2a2a37", "#7e9cd8", "#957fb8"]
    },

    "matte-black": {
        "light": ["#f5f5f5", "#cccccc", "#888888", "#444444"],
        "dark":  ["#000000", "#121212", "#2a2a2a", "#555555"]
    },

    "hackerman": {
        "light": ["#eaffea", "#b7ffb7", "#33ff99", "#00cc66"],
        "dark":  ["#000000", "#001a00", "#00ff00", "#00cc66"]
    },

    "osaka-jade": {
        "light": ["#eafff7", "#cafff0", "#5fffd7", "#00a86b"],
        "dark":  ["#001a1a", "#003333", "#00a86b", "#5fffd7"]
    },

    "ristretto": {
        "light": ["#f5e6d3", "#e6ccb2", "#c9a27e", "#8c5a3c"],
        "dark":  ["#1a1412", "#2a1f1d", "#8c5a3c", "#c9a27e"]
    },

    "ethereal": {
        "light": ["#ffffff", "#e6f7ff", "#a3d5ff", "#6bbcff"],
        "dark":  ["#0f1220", "#1c1f3a", "#5b6cff", "#9aa8ff"]
    }
}

# -----------------------------
# PROCESS
# -----------------------------
base = Image.open(INPUT_IMAGE).resize(SIZE)

for theme_name, variants in themes.items():
    for mode, palette in variants.items():

        lut = create_gradient_lut(palette)
        img = apply_gradient_map(base, lut)

        if mode == "light":
            img = adjust_light(img)
            img = add_glow(img, 0.08)
        else:
            img = adjust_dark(img)
            img = add_glow(img, 0.12)

        output_dir = os.path.join(OUTPUT_ROOT, theme_name, mode)
        os.makedirs(output_dir, exist_ok=True)

        filename = f"{base_name}.png"
        path = os.path.join(output_dir, filename)

        img.save(path)
        print(f"Saved: {path}")