Important: Lucid Theme / Polls- / Video-Module

Hi,

when i use in Lucid Theme the Poll module and Video Module of UNA than i have a little problem:

when i upload a Background Image in my site, i will see the same background image behind my polls and videos and i find no way to fix it at moment.

i use newest UNA version and have test it in the standard Lucid Theme too. The Iframe behind it using the Background of the site. Is there a way to fix this in the modules?! In clear color themes it is no problem to fix this fast via CSS but i use in my themes a video background too. 

When i insert 20 polls and 20 Videos, than i have 40 more videos what will still loading in the background at the same time ^^

Polls / BoonEx • 12.0.3

Videos / BoonEx • 12.0.0

Timeline / BoonEx • 12.0.6