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How to set a transparency value for an already colored GroundOverlay Image

Jul 12, 2015 at 12:24 PM
I'm Using a PNG image as a Ground Overlay and i want to set a transparency value for it but i couldn't find any property to set, even in the IconStyle .
I'm only found that i can give the image a specific color and change the alfa value using the IconStyle.Color but the problem that i have to select a color with it but i don't want to use any colors because my Image overlay is already colored.
Jul 12, 2015 at 7:02 PM
Looking at the KLM documentation, there doesn't appear to be a way to set the opacity unfortunately.

Could you possible alter the image (either in an image editor or in memory at runtime) and saving it with the specified opacity applied to it?