Good time of day. I want to send the layout of the UI theme for design evaluation. I want to attach a video file for the lock screen, but I couldn’t find any information about it. There are parameters for the image resolution (1440x3040), should the video be the same resolution? Or do other parameters apply to the video? And are there any restrictions on the size of the video file in megabytes?
The standard for a theme is 720x1280 16 seconds maximum, I don’t think it will affect your portfolio score … 
More importantly, what kind of design work you’ve created in themes.
Thanks for the info. I would not like to spend more than a month on wallpaper design and be rejected due to the mismatch of the video parameters)