Changing the Background on the Clock 2018 Accord
 

I would like to add my own pictures into the themes already on the clock feature, when I put jpegs on a thumb and install it the unit does not seem to see my pictures, anyone else already seen this?

try to save you pictures as .bmp that format works for me and hopefully it works for you too.

Wallpaper
 

Make sure the picture you want to add to the
background is in the root menu of the thumb drive,
Not in a folder.