Mostly the picons from satellites (13, 16, 19 and 28°) The new/additional picons are either from lyngsat.com/ and save as png or jpeg, example 5.55 KB (5,686 bytes, size 132x99)
or a google image search for channel name image (example size 310x163, 2.91 KB 2,900 bytes) and save as png or jpegand use echannelizer to send to box.