These forms are all MOVABLE FORMS that can be moved up and down the fretboard to play in all 12 keys. The red dot is the root note. There might be several "sub shapes" within each form. If you're unclear about how the color coding works on these charts, visit www.guitar-instruction-free-lessons-online.com/guitar-chords . If you need more information about the music theory aspects of this and all other chords, check out Scotty's video home study program at http://www.absolutelyunderstandguitar.com/ .