I just started using Ubooquity a few days ago and was thinking about the same thing. I've been sick the past couple of days so I wasn't able to fully tinker around with it but I did find a few minutes to mess around with the html. I found 2 ways of doing it: using a STYLE tag with your css in the folder-info.html or a LINK tag with a css file in the same folder. Something like <LINK rel="stylesheet" href="[[FOLDER]]/style.css"/>
I just started using Ubooquity a few days ago and was thinking about the same thing. I've been sick the past couple of days so I wasn't able to fully tinker around with it but I did find a few minutes to mess around with the html. I found 2 ways of doing it: using a STYLE tag with your css in the folder-info.html or a LINK tag with a css file in the same folder. Something like <LINK rel="stylesheet" href="[[FOLDER]]/style.css"/>