I have been thinking the same thing- especially the marching band competitions and potentially Drum and Bugle Corps competitions.
Band and Corps use their flags and uniform colors in contrast to a Green Field to display their precision as viewed in the stands... and a deep blue field could certainly mess that up ...
Not sure how much revenue the School or district get from the other events, but hopefully the HS was not selfish when choosing the colors and looked at all other potential venues for using the field.
Guess FHS will need to use Red - or White gowns for graduation from now on so you can at least get a picture of your child ...
I don't know, the floating head pictures would be pretty funny.
I sure hope the powers at be would have considered all these things. If it turns out the stadium looses business because of the color of the turf and the school and surrounding companies suffer financially, some people need to loose their jobs.
I'm guessing that everything will turn out fine and Folsom High will be known as having quite a distinctive field.