I have xubuntu 18.04, and I really like Pop!_OS theme for Xfce ( The minimalistic icons and live pastel colors )
But I really hate how it waste space. The icons and buttons has huge margin around it. I'm looking into
main.rc and trying to figure out how to minimize all padding, margins and borders so that is use space more efficiently. But I really don't understand the file structure and my blind modifications did not yield any useful results.
This is how Pop!_OS theme waste the space - the icons cannot be seen on standard 24-pixel Xfce panel. The to of application labels are cut.
This is how it looks with some normal GreyBird theme: