Didn't Huawei p9 display red when charging without electricity? How about green?

Dear, Huawei P9 battery status indicator:

When the status indicator light turns red and flashes, the battery charge is lower than 10%.

When charging, the status indicator light is red, and the battery power is less than10%; The status indicator light is yellow, and the battery power is greater than 10% and less than 80%; The status indicator is green, and the battery power is more than 80% and less than100%;