I tried to create some bitmap files used for addin icon
what the trick to make the background transparent so it won't show on SW UI
All gray pixels (RGB 192,192,192) will be considered as transparent. So just use this as the transparency mask. Here is the reference (read remarks section): 2013 SOLIDWORKS API Help - LargeIconList Property (ICommandGroup)
Awesome !!!Thank you Artem
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