Decryption of assets png

I'm trying to modify graphic assets of the software I'm using (for aesthetic puroposess, I guess it's hard to do something harmful with graphic assets) but developer encrypted them. I'm not sure why he decided to do that since I used and modified a bunch of similar softwares and developers of those didn't bother (as I can see no reason why encrypting those assets would be necessary).

So anyway here are example of this encrypted graphic asset:

https://www.mediafire.com/file/mmzibqnav37xetj/atlas.png/file

Is there a way of decrypting this?
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