How to change display language in open with context menu

I develop a custom file editor, I want to display its name in open with context menu,

as you can see my editor is ‘target-code-coverage-analysis.config’,
I have two questions

  1. I want to display ‘’ with my own text. how to do that?
  2. why default ‘Code Editor’ does not display chinese, I have alreay install chinese language extensions package, you can see other menu item dispaly correctly
  1. You need to assign your WidgetOpenHandler a human readable label property.
  2. Seems like we missed that label.

thanks, it works, for Code Editor may be need nls