Mad for Xfce Icons: Evolvere Icon theme by franksouza183 Required extension for Firefox entries: "Text Contrast for Dark Themes". Tested and running on Manjaro Xfce.

IceBlue for Xfce Tested and working on Manjaro Xfce

Edited Greybird themes for Xfce4 with transparent taskbar in the panel and Black Crystal V (Red) Xfwm4 theme. For versions of GTK 3.16-3.18 (Debian Jessie and Ubuntu 16.04) and GTK 3.20+ (Debian Stretch, Ubuntu 16.10+, Fedora 25, Arch Linux ...)

GTK2 Theme

Saturn for Xfce Icons: Evolvere Icon theme by franksouza183 Tested and running on Manjaro Xfce.

Good old Gnome. Beta version for Xfce - Xubuntu 18.04. Installation: just copy the folder "Ambiance" from the archive to the working directory ~ / .themes go to Settings -> Apperaence. Select Ambiance theme. and go to Settings -> Window Manager. Select Ambiance style. rejoice!

Carbon for Xfce Required extension for Firefox entries: "Text Contrast for Dark Themes". Icons: Evolvere Icon theme by franksouza183 Tested and running on Manjaro Xfce.

Titanium for Xfce Icons: Evolvere Icon theme by franksouza183 Tested and running on Manjaro Xfce.

..mint 3colors... GTK2 GTK3 Gnome shell openbox colours- Brave (blue), Dust (brown) and illustrious (pink).

Mint-X-Metal desktop theme....