Mid north coast NSW, Aus 18 fields tournament on the weekend. Have a look at the ref next pitch. About 30 refs in the tournament hardly anyone wore black in the 30 degree sun. I'm surprised the players didn't complain. No tournament rules to stop player or the referees wearing any colours.
The "Black is for refs only" rule is dying out in Australia as the older generation are being replaced by newer generation in organisations and management committees who set the rules.
Not a charity event. 6 aside. Teams paid good money to play. There were decent markings but no corner flags required and unless one of the players has another head on his back there is a goal keeper there
Is the guy in the centre of the picture, between the two black/white striped players and just to the left of the green covered gazebo the referee? Difficult to be sure but he looks like he could have a watch on his right arm and may be lifting a whistle to his mouth. Perhaps also wearing a baseball cap?
It does all look like an informal tournament rather than a 'serious' 11 a side match.