The colored breaker handles are nothing new. Murray typeMP, Bryant typeBR, & Zinsco type JUNK [Linked Image] breakers have had: Blue=15A, Red=20A, & Green=30A handles for many years.
Also, these colors are used on toggle switches that are horsepower rated.
Just don't buy Federal Pioneer, which are a prettily colored version of the old FPE Stabloks and still made in Canada