Hi mouser, first of all thx for a new version with no-rect window support.
Here is some problem. When i capture non-rect window then I apply shadow effect the transparent background become white, so it is not non-rect anymore. Here is the ss.
First shot without shadow effect
after applied shadow effect
you cant see the different because background here is white. maybe you can try save and view on ur pc. One with transparent background and another one shadow with white.