Youtube ZIM creator script should be able to mirror header picture (and replace the youtube logo).
In the case of the following channel:
https://www.youtube.com/channel/UC2gwowvVGh7NMYtHHeyzMmw
I mean put as header the following image:
https://yt3.ggpht.com/--JX-N-HzfoI/UiXIjT3XiJI/AAAAAAAAAKw/C3f0hWdf9L4/w2120-fcrop64=1,00005a57ffffa5a8-nd/channels4_banner.jpg
This is correct
Image => scraper_dir+"CSS/img/YOUTUBE_header.png"
We need to have it in the CSS/HTML
fixed