BUG: Weird result when saving matrix to png file

[IoachimusRoderici]

I have stored an image in a Matrix{RGB24}.

When i save the image to a jpg file, i get the expected result. When i save the image to a png file, it looks very wrong.

I am using Julia v1.11.3 and Images v0.26.2.

Minimal Working Example:

using Images, ColorTypes

# Fill a matrix with 4 random colors:
image = zeros(RGB24, 100,100)
image[1:50,1:50] .= RGB24(1, 1, 1)
image[50:100,50:100] .= RGB24(1, 0.7, 0.5)
image[1:50,50:100] .= RGB24(0.32, 0.9, 0.01)
image[50:100,1:50] .= RGB24(0.85, 0.52, 0.1)

# Save to jpg and png:
save("image.jpg", image)
save("image.png", image)

image.jpg (looks ok):

image.png (looks wrong):

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EDIT: Better example

[RalphAS]

RGB24 is not as well supported as other Colorants. I haven't figured out how it's handled in the JPEG chain, but until someone implements something similar for PNGFiles.jl, one can convert image_to_write = RGBA{N0f8}.(image) before saving.