Move files

src/editor/operations/apply_pixel_shader.py

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+from typing import Callable, Tuple
+from PIL import Image
+
+
+def apply_pixel_shader(
+    img: Image, callback: Callable[[int, int, int], Tuple[int, int, int]]
+):
+    width, height = img.size
+    pixels = img.load()
+    for x in range(width):
+        for y in range(height):
+            r, g, b = pixels[x, y]
+            pixels[x, y] = callback(r, g, b)
+    return img