The "green" and "blue" stripes are the exact same color.
Funny, that one didn't seem to really work on me. Maybe I'm too used to trying to stare at graphs using poorly chosen color schemes on computer screens or a deeply hidden color-blindness streak, or my flat-screen monitor; I don't know. I only saw the 3 colors that are there in the graph, though they did appear to be slightly different hues in the various regions. (Usually your illusions get me every time, though.)