On Fri, 6 Aug 2021 02:18:38 GMT, Thiago Milczarek Sayao <tsa...@openjdk.org> 
wrote:

> It seems raw images need to be converted BRGA -> RGBA.
> 
> It was being converted on gtk2 code path, but gtk3 only uses 
> `gtk_drag_set_icon_pixbuf`.
> 
> It simplified the gtk2 `DragView::View::expose` to paint with 
> `gdk_cairo_set_source_pixbuf` (that is available since Gtk 2.8). The  
> existing path seems to be converting again.
> 
> Run the issue sample with `-Djdk.gtk.version=2` to test.

I will look at this. Meanwhile, could you please write an automated system test 
for this?

-------------

PR: https://git.openjdk.java.net/jfx/pull/599

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