You changed the labels with version 9 and differentiate into local and server-side labels.
Under “labels” on the left (where folders are displayed) you find the local labels with selected color, which were set in the label management for local labels.
If you want to assign a label in the email list you can use the right click or the option from the main menue.
Both options are showing local and server-side labels without saying which is local and which is server-side.
Please add the heading you are using in the label management.
It’s a big confusion at the moment.