How do I change the Console colour of Arduino IDE?
It turns out that the
theme.txt configuration file is not located alongside the
preferences.txt file, but alongside/under the Arduino application's
.jar files. Thus, for the current version (1.6.3):
- on OS X,
- on Win7,
- on Linux,
- on Windows 10, when installed as an App, C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_18.104.22.168_x86__mdqgnx93n4wtt\lib\theme\theme.txt, however it does not seem possible to edit it - it can be opened in notepad++ but a save fails.
See an associated Github issue, IDE Background and print color options needed, for a little more discussion.