Color of upper corner in Explorer

[malvinas2]

The color of the corners isn't the right one, when the focus from the current window is removed.
But I imagine this can't be changed, because it depends on the way Win10 displays the borders?

[3am]

See whether that light blue color is in any of these images:

Windows & Caption Buttons > Aero > DWM Window > Frames > Window > Left > Inactive
Windows & Caption Buttons > Aero > DWM Window > Frames > Window > Right > Inactive
Windows & Caption Buttons > Aero > DWM Window > Frames > Window > Top > Inactive

[malvinas2]

Windows & Caption Buttons > Aero > DWM Window > Frames > Window > Top > Inactive

I believe it is the 'Top' entry, but also seems to be some "interaction" with left and right frame. Quite complicated, I will postpone that.

By the way: Is there any chance to avoid that Windows 10 assigns the 'accent color' to the title bar, overwriting the entry of the visual style?