Hello world !
Sorry for my poor english.
I work with several Arduino board. I should want have different color when I use different instance of Arduino IDE, as I have different port COM.
Do not confuse instances and windows. An instance is when opening IDE.
In one instance with file/open I can open several windows having all same port COM, same Serial Monitor.
If I open several instance, for each I can define one different port COM and have one specific Serial Monitor (and opening multiple windws).
To find witch Serial Monitor works witch what instance of Arduino IDE, I think it is easier if they have same color. On each Arduino board I will past a same colored electric ribbon as Arduino IDE.
It is not about font color or backgroud color, but only the color of horizontal separation lines (top or head, botton or foot, and line that which changes color when having a compilation error).
Is it possible ?