I'm searching for the path and the source code for the builtin (I think) function, name is: renderBitmap().

This function appears as a member of the ArduinoLEDMatrix class but its name doesn't appear in the cpp source code or .h files on my PC at Documents/Arduino/libraries.

As I see that the row access is in the opposite usual access (Up Down) I'm wondering if a supplementary function exists ?

Does somebody know where the source code is on my PC? I have to say that accessing to GitHub appears to me as too difficult, you know..!