/usr/share/WindowMaker/Styles/ is in wmaker-common 0.95.5-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/WindowMaker/Styles/Autumn.style
/usr/share/WindowMaker/Styles/Black.style
/usr/share/WindowMaker/Styles/BlackTexture.style
/usr/share/WindowMaker/Styles/Blue.style
/usr/share/WindowMaker/Styles/BlueDawn.style
/usr/share/WindowMaker/Styles/BlueishGreen.style
/usr/share/WindowMaker/Styles/Brown.style
/usr/share/WindowMaker/Styles/Brownish.style
/usr/share/WindowMaker/Styles/Chumbo.style
/usr/share/WindowMaker/Styles/Copper.style
/usr/share/WindowMaker/Styles/DarkBlue.style
/usr/share/WindowMaker/Styles/DarkRed.style
/usr/share/WindowMaker/Styles/Emerald.style
/usr/share/WindowMaker/Styles/Fire.style
/usr/share/WindowMaker/Styles/Food.style
/usr/share/WindowMaker/Styles/Golden.style
/usr/share/WindowMaker/Styles/Green.style
/usr/share/WindowMaker/Styles/GreyBlue.style
/usr/share/WindowMaker/Styles/Gtk.style
/usr/share/WindowMaker/Styles/IRednBlue.style
/usr/share/WindowMaker/Styles/Interlace.style
/usr/share/WindowMaker/Styles/LightBlue.style
/usr/share/WindowMaker/Styles/NewBlue.style
/usr/share/WindowMaker/Styles/NightSky.style
/usr/share/WindowMaker/Styles/Pastel.style
/usr/share/WindowMaker/Styles/Pink.style
/usr/share/WindowMaker/Styles/Pumpkin.style
/usr/share/WindowMaker/Styles/Purple.style
/usr/share/WindowMaker/Styles/Purplish.style
/usr/share/WindowMaker/Styles/Red.style
/usr/share/WindowMaker/Styles/RednBlue.style
/usr/share/WindowMaker/Styles/Spring.style
/usr/share/WindowMaker/Styles/Summer.style
/usr/share/WindowMaker/Styles/Traditional.style
/usr/share/WindowMaker/Styles/VioletBlue.style