I have found the git source for SerialMonitor (
Arduino/app/src/processing/app/*) but unable to find it in the installed Arduino IDE. I am using Ubuntu 20.04 64-bit.
I want to make changes to it, not so much a terminal emulator but just perform simple ASCII control characters like backspace (0x08). Some advice on replacing it would be appreciated too; I guess it involves
jar files (I am not a java developer).
I have read elsewhere about (and used) various other terminal-type programs, but of course they stop the IDE from uploading sketches. So not much good for development.
Or if anyone knows of an already-improved Serial Monitor, and how to install it for the IDE, then that could be perfect.