Yellow Moon 2013 Tour Tee

I had to visit three merch vendors at Charlottesville to get one, but I left the show with a Yellow Moon tour tee. (Has it really been two months since then?)

I love the graphic on the back, which features the U.S. tour stops arranged like a constellation, branching out around the elements that appear in the Yellow Moon panel on the Lightning Bolt LP cover.

Anyone know how the six-shooter chamber imagery relates to the song or to the moon or to anything? In the panel, a crescent moon is at right, cradling what appears to be a bullet chamber in which the uppermost left circle is lit up in red. Perhaps it relates to this lyric?

"An echo that rings
A bullet unchained
One life, one grave
Joins the parade"

Also, have you ever noticed how many PJ song titles contain the word Yellow? Black Red Yellow, Yellow Ledbetter, Yellow Moon. Also moon/sun imagery is prevalent in Ed's lyrics . . . Red Mosquito, I'm Open, Push Me Pull Me, Swallowed Whole, Long Road, Black and probably a dozen more.