Woo hoo! A new release for all of you MAX7219 fans.
This program helps in making shapes for the MAX7219 LED Matrix. It was designed to help me make shapes for a MAX7219 module on the Arduino, but should be applicable to other applications as well. It comes pre-designed to work with the Arduino mega out-of-the-box easily assuming you have the LEDMatrix library by valmat (https://github.com/valmat/LedMatrix).
Update: I put up Version 2 which adds a matrix loader. The matrices are stored as an unsigned long and put as a comment above the generated shape.