McDonald's manager shirt color code?

Question

What does the white manager shirt mean? ( I was told by someone that they have different colors for RGM, Assistant, Shift's, etc.)

Answer 1

where im at color means nothing, crew/crew trainers wear all the same basic blue shirts, then team leaders are blue dress shirts with black stripes on them, swing managers and salary managers wear black and gray striped dress shirts or blue or white dress shirts

Answer 2

 In canada , White shirts are for all managers, salary or not, the other ones are obsolete and are supposed to be ridden of .