These are plain original PE machines not PE+. There is no color pattern in the test menu screens on a plain PE that I've ever seen
I've only see that option on a PE+ that has many more test menu options with no dips switches used for options
There are only 8 test screens on a plain PE & a few have 9 that include Graphics
Input, Output, Hopper, Denomination, Max coin in, Background color, Deal speed, Graphics/only on some machines & Out of order & the Hopper limit, Credit hold, Double down are done with the dip switches on the board
I've had several plain PEs over the years & they all had credit increments coming up average/slow with the exception of this new one in & why asking. I must be missing how to view it & I can't find it in the PE/non plus manual
Thanks,
Dan