Hey! Thanks for sharing the awesome tool!
I typically work with microcontrollers, and thought it might be useful to have a similar view to what you are rendering here, but slightly less oriented towards looking at the elf file itself, and more oriented to "what ends up on the microcontroller".
I have a little mockup of what I mean in this twitter post, let me know if this is something you would be open to having as an option for elfcat, or if it would be better as a separate tool.
Thanks again!