1. Image alpha composite

See: https://pillow.readthedocs.io/en/stable/reference/Image.html#PIL.Image.alpha_composite

1.1. Alpha composite

Use the Image.alpha_composite(image1, image2) method to return an image as a composite of image2 over image1.
Fully transparent regions do not show in the resultant image.
Both images must be the same size and both must have mode RGBA.
from PIL import Image

with Image.open("shapes/x.png") as im1:
    with Image.open("shapes/o.png") as im2:
        # print(im1.mode, im2.mode)
        im_out = Image.alpha_composite(im1, im2)
        im_out.save("Image/Image_alpha_composite.png")
../_images/Image_alpha_composite.png