Load videos as backgrounds

[Lokotito]

I installed FlexLauncher on a Debian system in kiosk mode (terminal).

flex-launcher_2.2_amd64.deb

When I try to set a video background:

Mode=Video
Color=#000000
Image=/home/kodi/.config/flex-launcher/assets/liveWallpapers/live.mp4

I only get a black screen in background.
My video is Video H.264, 1080p 30fps, no audio, compressed with ffmepg.

I installed the Qt y GStreamer packages, but I think it's not loading the background video because the FlexLauncher build doesn't include the mediaservice plugin. Is this correct?

Only after installing and configuring picom, using this config.ini i was abble to se video in background:
[Background]
Mode=Transparent
Color=#000000
#Image=/home/kodi/.config/flex-launcher/assets/liveWallpapers/live.mp4
ChromaKeyColor=#010101

Runing mvp+live.mp4 first post boot.

(whitout picom was imposble)