sorry for the delayed reply, but this has been implemented.
You have the possibility to change the icon and color of your connections within the Connection settings, as shown in this example:
Please let me know if you need further assistance.
Is there a way to color code device icons or folders within the server list on Royal TSX? I currently have over 90 devices in my list ranging from different versions of Windows, Linux, Cisco, HP, etc. I have them divided into folders, but it would make it much easier to find things if the device icons or at least the folders could be color-coded. If this isn't currently a feature it would be very helpful.