Gmail labels colour changing via javascript or gmail api in web UI

Question

Is there any way to change the gmail label colors ?

I replicated the gmail call by passing the same parameters which causes colour to change ,but it doesn't seem to work.

Is there any way if I could do it by gmail api ?

Answer 1

You cannot change the color of labels in the Gmail UI with the Gmail API.

The only things you can change with a modify request is labelListVisibility, messageListVisibility and name.

Answer 2

You could use a Browser Extension and modify the DOM.

Similar approach is used with https://www.inboxsdk.com/