It works fine, thank you so much
I had to change this line in themesetting.xml: <Force16X9AspectRatio>false</Force16X9AspectRatio> otherwise the theme don't display properly on my screen.
I don't know if videos in 4:3 ratio could be display in full screen (see the screens caps in attachment) however, it seems to work perfecty with 16:9 ratio videos.
Could be great Here is how it looks on mine. The marquee is only distored on this game. My resolution is 3440x1440. I corrected in the videobord folder the default .png for my screen but I don't know what to do for the marquee on the arcade screen. If you decide, to port your theme for ultrawide screen I'll be happy