Yes, the transparency was not very good when a took this image, but I looked at recent Saturn images on the net and all, except the IR and the over processed ones, show a very faded hexagon.
A couple of years ago the hexagon was greenish and dark relative to its surroundings. Last year I did not image it so I suppose I'm comparing it to how it was back then.
While Damian Peach's image of 19th March shows it reasonably well , at low contrast, on Christopher Go's from 2nd of April it is barely visible.
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