Click on pixels to select them, you may select more than one at a time. To unselect pixels press a. this will unselect ALL selected pixels. To change the color of the selected pixels, press space, this will only change the color of the selected pixels. Press space until your desired color appears. To reset the pixels press r. Note. a glitch was found in which the color sequence when changing the pixel colors is randomized, this will soon be fixed.
Feel free to remix with your pixel designs.