How do you change the auto format tab from 2 to 4 .... the file "formatter.conf" does not appear to be included or used by IDE 1.10 or later versions ... (this is on a MAC running OS 10.14.6)
after 55 years of designing and writing code for computers you would think i would remember modern computer guys thinks its good to hide things and not document where they are ... as opposed to the good old days when we exposed everything and document occasionally ...
for those who bump into the same issue on a MAC look in arduino.app show package contents then
Contents/Java/lib/formatter.conf
It's really great of apple to make searching packages difficult...
by the way this the path to other parts of the arduino configuration stuff (but don't get confused by the preference.txt file here ... it's not used, i.e. "should not be modified", see the arduino preferences menu for the real location ...
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I'm glad to see you found it fdgg. Thanks for taking the time to post an update with your solution.
The extra folder levels in the Arduino IDE installation on macOS have definitely caused some confusion for others. Although I'm experienced with Windows and Linux, I've never used macOS so the instructions I provide probably don't quite as well on macOS as they might. I'm working on making my answers more broadly useful, rather than specific to the Windows, Arduino IDE, AVR board-using majority of users.