Xubuntu 19.10
DE: Xfce
WM: Xfwm4
WM Theme: OlliFri-XFCE-Dark-38px
Theme: Eye-friendly-Dark-M-RBC [GTK2], Arc-Dark [GTK3]
Icons: Delft-Audacious [GTK2], Sardi-Arc [GTK3]

Gave up on theming...