Using ArduinoGraphics.h for inverted text to UnoR4 LED matrix

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Hello, I am starting to explore the LED matrix on the Uno R4 wifi. I have been following the Arduino examples and generally so far so good. However, I want more details about displaying graphics. I went to the ArduinoGraphics library, and it is useful, but also quite limited in its explanations.

The main thing I wish to do, is print scrolling text inverted. Seems like it should be easy to do, but it is not explained. I can do this easily with an oled display and U8g2, but here it is not clear.

Can anyone explain if this is possible? Also, is there any place where the Arduino Graphics functions are more clearly explained than in the Arduino library section? I have looked around, but no luck...Thanks.

Steven Lightfoot

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By inverted do you mean upside down or do you mean dark characters on a light background?

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Good question, I mean upside down/rotated 180 degrees. Is this easy to do? Seems like it should be but its not obvious how to do it, IF its possioble.

Thanks, Steven Lightfoot

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