I created a columnview but for some reason themes appear weird on it. I tested several themes and don’t think the theme is the reason. It doesn’t happen on a treeview.
You see a weird shadow at the right on a columnview. On some themes it’s lighter but it’s always present, no matter what theme.
I found the problem and I think it’s a bug in GTK for windows.
If you put the columnview inside a scrolledwindow, the weird shadow appears. Of course we can’t use a columnview without a scrolledwindow, because then it can’t scroll.
If you append the columnview without a scrolledwindow, the shadow is gone.
I hope somebody can look at this possible bug?
It happens in all renderers: cairo, ngl and vulkan. So it’s not renderer related too.
I suspect this has nothing to do with Windows, for me under Linux it is also a shadow, only it is bluish.
As soon as I insert gtk_column_view_column_set_expand(column, TRUE) into a column, it is gone.