For SSEEDIT there is a white outline in the right click menu when using this theme.
For Creation Kit platform extended you can see in the screenshots I sent what happens when enabling dark mode. Notice the status bar at the bottom as well turns white when using dark magic.
To get this dark theme to work you need to download skyrim creation kit along with the Creation Kit Platform Extended.
To enable the dark theme you need to open CreationKitPlatformExtended.ini and set uUIDarkThemeId=1
As for programs on my work laptop programs where made to operate high tech machinery that copys UI elements from the luna theme from windows xp and somehow integrates windows aero theme as well. It already looks bad without dark magic but looks super messed up with dark magic enabled. Text, highlight boxes, submenus have dark outlines and scrollbars are sometimes inverted even though it uses the scroll bars from the luna theme. I am not sure it is possible to get dark magic to work with every program especially when there are programs that use the windows themes in archaic ways.