I've found the thread at Lazarus forums about this "bug": Transparent PNG showed inverted in Wine ( TImage problem ).
As I've read it's not only a Lazarus problem but WineHQ has a possible bug.When a PNG picture with transparent color is loaded in a TImage,
the image is showed correctly in Windows XP, but is showed vertically
mirrored in Wine.
Good luck: I've read how to build .deb packages and it's quite hard. Be careful with dependencies.
I'm sure some people will appreciate a .rpm package too.
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