Add new cool light beam for the flashlight

Co-authored-by: Евгений Титаренко <frundle@teasanctuary.ru>

invert.py

@@ -0,0 +1,34 @@
+# shout out to FriendlyWithMeat
+
+from PIL import Image
+from pathlib import Path
+import os
+from PIL.ImageOps import invert
+import argparse
+
+parser = argparse.ArgumentParser(
+                    prog='invert.py',
+                    description='Took images from INPUT_FOLDER, invert them and save in OUTPUT_FOLDER.')
+parser.add_argument('INPUT_FOLDER')
+parser.add_argument('OUTPUT_FOLDER')
+
+args = parser.parse_args()
+
+WORK_DIR = Path(args.INPUT_FOLDER)
+IMG_EXTS = set((".png",))
+OUT_DIR = Path(args.OUTPUT_FOLDER)
+
+
+OUT_DIR.mkdir(exist_ok=True)
+dir_contents = os.listdir(WORK_DIR)
+for elem in dir_contents:
+    img_file = Path(os.path.join(WORK_DIR, elem))
+    if img_file.suffix in IMG_EXTS:
+        image = Image.open(img_file)
+        r, g, b, a = image.convert('RGBA').split()
+        rgb_image = Image.merge('RGB', (r,g,b))
+        inv_image = invert(rgb_image)
+        r, g, b = inv_image.split()
+        final_img = Image.merge('RGBA', (r,g,b,a))
+        save_path = Path(os.path.join(OUT_DIR, elem))
+        final_img.save(save_path)