Accompanying the daily Hero's game is usually a picture.......are these randomly selected or does someone chose them?

The topic for today (5th July 2019)is "U.S. Civil War" and I would suggest someone has got the wrong war! Picture depicts people in a sort of maroon uniform, firing what appears to be Matchlock Muskets.
Now I know, particularly at the start of the US Civil War, the South in particular had difficulty in arming it's troops, and many obsolete weapons were used............but not, I venture to suggest, MATCHLOCKS !

The picture probably depicts the ENGLISH Civil War of 1642-51..............ah well, its a civil war, wrong country, wrong century....but I concede.......a Civil War.

Is it this picture? This image is the one the subcategory for U.S. Civil War has, and I think that is what gets used when the topic is chosen for other games, such as Team Heroes. The game just picks up the image associated with the subcategory, it doesn't generate them on the spot. Many of the images are merely suggestive of the topic, not exact representations of it.

http://www.funtrivia.com/ql.cfm?cat=14282

As C30 says, the picture is labelled as "Musketeers In English Civil War Reenactment" in The Tale Of Cromwell's Head at
http://talesofcuriosity.com/v/CromwellsHead/
Well spotted !