<Swing Dev> RFD: JEP: Modernize the GTK3 Look and Feel implementation for OpenJDK

[Clemens Eisserer]

Hi,

I don't have anything valueable to add, just would like to thank you
for working on the GTK3 LnF.
The GTK2 LNF's code paths are pure horror from a performance
point-of-view - it is a really valueable addition that GTK3 can render
to client-side surfaces without any obscure workaround.

Thanks!

- Clemens