It would be great to have something other than white where we could pick the color, or have the folder backgrounds adjust them selves based on the selected theme, or major color used for the browser background. White does not look good all the time and looks out of place with some themes.
Please consider at least having the theme adjust the backgrounds to something that blends better.
... I hope we will see some version of 'Opera One' come to mobile soon. It looks really good!
Thanks for listening.