Active Gtk4 binding

[bruce3434]

https://forum.dlang.org/post/kjskgxivrktczffuncok@forum.dlang.org

On Wednesday, 30 September 2020 at 00:09:50 UTC, ryuukk_ wrote:
> On Tuesday, 29 September 2020 at 21:08:40 UTC, aeldemery wrote:
>> Is there currently any active gtk4 binding? It seems that 
>> Gtk-d has not been updated in a while.
>
> https://github.com/gtkd-developers/GtkD/pull/289
>
> it looks like they are working on it

It seems like the pull author is not maintaining it. This 
concerns me.
Is GtkD using the GObject Introspection to generate these 
bindings?