Not sure yet. I was trying out some lighter page background colors. Like mentioned at https://www.rapidtables.com/web/color/white-color.html
I tried if a similar styling like shown in the application screenshot, or their webpage, of https://www.ledgerwallet.com/live would be possible to do. ??
When using lighter background colors then the blocks are not really good visible, so I thought about setting the border color of the blocks. Maybe with some nice shadows. Not sure how this can be accomplished easily ;/ Maybe some default values would be good or via custom CSS.
Thanks for your time and all your support!
Marco
P.S: I just found your tutorial post https://mystemplus.com/blog/add-icons-to-menus/ I did this wrong originally, this helped a lot!