Thank you very much! Very well done! I'm using mostly Greybird since a long time because it is one of the very few themes that keep up with the constant (and annoying) changes in GTK, with most of the other themes GTK3-apps look like a mess with every new GTK-release and I'm really not a fan of Adwaita ;-) There were just some little things regarding Greybird like the small scrollbars (too small for my liking) and so on. Your Greybird-mod imho combines the best elements of the original Greybird and Zukitwo. Excellent job - thanks a lot! I like it very much!