First off, this is an awesome tool and a very cool IDE that you have. That said, I have a few comment/suggestions.
If the number of files included exceeds the width of the monitor, there is no way to move laterally across the tab to get to the other files. I have to make my browser wider than the monitor and drag it off the side of the screen. Maybe add some scrolling arrows when this happens?
Are you guys going to add support for header only files? I have a few “libraries” that are more convenience than anything that are just headers. I also was using headers for static config files.
Finally, if you have a library that is only included in one of your other libraries, the IDE throws a warning when you build that it hasn’t been included. No biggie for me because I know what it is doing, but that could be confusing to others.
Thanks again for this awesome device!