Unable to change label and label color for a new mail alias

[Commodore]

I've created a new email alias in my iCloud email account (needless to say, they don't let the me.com domain to be added anymore, which is a shame; icloud.com sounds so... plain? ). The ability to change the label name and label color of the new alias in its settings is grayed out (or unclickable). I can still do this for the old alias, though. Is this a bug or some sort of a new feature?

 

[Commodore]

Never mind, I accidentally solved this... it's kind of unintuitive: You have to click into the "label" field (i.e. over the existing name of the label), so that the cursor appears, and you can start typing the new label name there, and in the meantime the label color is also "unlocked".