[XFCE] Having Trouble Centering Windows

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https://bbs.archlinux.org – So I am a bit OCD, and I would like my terminal window to open up perfectly centered on my screen (actually, I would prefer everything to open in the center). I tried Window Manager Tweaks --> Placement, setting the size to small and to open at the center of the screen, but it still does not work. Thunar nor the terminal will open in the center of the screen while some settings menus will. Any idea what I could do here to fix this? I read up about xfwm4-tiling package, and to be perfectly honest I am not entirely sure how to use it. From the looks of it, this is probably much more than I ne (HowTos)