Could you please update the SafeString Library to also support Earle Philhower's arduino-pico core.
The compile error:
In file included from /home/kh/Arduino/libraries/SafeString/examples/SafeString_Tests/SafeStringCaseChanges/SafeStringCaseChanges.ino:13:
/home/kh/Arduino/libraries/SafeString/src/SafeString.h:120:10: fatal error: Printable.h: No such file or directory
120 | #include <Printable.h>
| ^~~~~~~~~~~~~
compilation terminated.
exit status 1
Error compiling for board Raspberry Pi Pico.