I'm modding my game's UI into a dark themed UI. I started with ProGen's UI and managed to remove most of its Vanilla-ZH blue borders through the MainMenu.wnd file and changed the buttons' background through the shell interface targa file. The problem is I don't know which .wnd file and where in that certain file can I edit the border color of popup tooltips such these:
popup tooltip where it says "USA Campaign"
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