Create app.py

app.py

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+import gradio as gr
+from PIL import Image
+import os
+import zipfile
+import tempfile
+import shutil
+
+def make_icons_white_in_folder(folder_path):
+    for root, _, files in os.walk(folder_path):
+        for filename in files:
+            if filename.lower().endswith('.png'):
+                filepath = os.path.join(root, filename)
+                image = Image.open(filepath).convert("RGBA")
+                pixels = image.load()
+
+                for y in range(image.height):
+                    for x in range(image.width):
+                        r, g, b, a = pixels[x, y]
+                        if a != 0:
+                            pixels[x, y] = (255, 255, 255, a)
+
+                image.save(filepath)
+
+def process_zip(zip_file):
+    # Create temp directories
+    temp_input_dir = tempfile.mkdtemp()
+    temp_output_zip = tempfile.NamedTemporaryFile(delete=False, suffix=".zip")
+
+    try:
+        # Extract uploaded zip
+        with zipfile.ZipFile(zip_file, 'r') as zip_ref:
+            zip_ref.extractall(temp_input_dir)
+
+        # Process PNGs in the folder
+        make_icons_white_in_folder(temp_input_dir)
+
+        # Repack processed files into a new zip
+        with zipfile.ZipFile(temp_output_zip.name, 'w') as zip_out:
+            for root, _, files in os.walk(temp_input_dir):
+                for file in files:
+                    full_path = os.path.join(root, file)
+                    arcname = os.path.relpath(full_path, temp_input_dir)
+                    zip_out.write(full_path, arcname)
+
+        return temp_output_zip.name
+
+    finally:
+        # Clean up the temp directory
+        shutil.rmtree(temp_input_dir)
+
+# Gradio interface
+demo = gr.Interface(
+    fn=process_zip,
+    inputs=gr.File(label="Upload ZIP of PNGs", file_types=[".zip"]),
+    outputs=gr.File(label="Download Processed ZIP"),
+    title="PNG Icon Whitenifier",
+    description="Upload a ZIP file containing PNG images. The tool will turn all visible parts of each PNG white (preserving transparency) and give you a new ZIP for download."
+)
+
+if __name__ == "__main__":
+    demo.launch()