16x2 I2C RGB LCD Keypad HAT with RGB Font: no makefile found

Hi

Just purchase a 16x2 I2C RGB LCD Keypad HAT with RGB Font for my Raspberry Pi and am following the tutorial IIC 16x2 RGB LCD KeyPad HAT for Raspberry Pi Wiki - DFRobot.

Have couped it the the Pi, enabled I2C, installed i2c-tools and successfully (?) detected the device.

I then downloaded the files to the board git clone https://github.com/DFRobot/DFRobot_RGB1602_RaspberryPi.git.

Step 4: Run the C++ program[SetColor]: Set the LCD screen color to red.

cd DFRobot_RGB1602_RaspberryPi/DFRobot_RGBLCD
ls
cd cpp
ls
make
./SetColor

This is the output

What am I doing wrong?

Thanks
Tony