If you have a .png file, just put it in the MA2.6 folder.
(C:\Program Files\SereneScreen\Marine Aquarium 2.6)
But be sure the file dimensions and properties are correct.
(256 x 256 transparent PNG-24)
If you have a black and white .bmp file (up to 1500x1500), then you can use the import logo button.
Patrick
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