Color of custom node text in left panel

Can I give my own color to text for my custom node in pallet ?.

I tried following code:-
labelStyle: function() {

This does not change the color of the text in the nodes panel /left panel .It is always black.
But once I drag it to editor it gets the color.

Any help appreciated.

No, a node cannot (and should not) customise its label colour.

Thank you so much Nick ,if saved my efforts .I was about to explore it .