```coffeescript
Q = require 'q'
Package = require './package'

module.exports =
class ThemePackage extends Package
  getType: -> 'theme'

  getStyleSheetPriority: -> 1

  enable: ->
    atom.config.unshiftAtKeyPath('core.themes', @name)

  disable: ->
    atom.config.removeAtKeyPath('core.themes', @name)

  load: ->
    this

  activate: ->
    return @activationDeferred.promise if @activationDeferred?

    @activationDeferred = Q.defer()
    @measure 'activateTime', =>
      try
        @loadStylesheets()
        @activateNow()
      catch error
        @handleError("Failed to activate the #{@name} theme", error)

    @activationDeferred.promise
```

Add 0 load time for no-op ThemePackage::load
user
```coffeescript
Q = require 'q'
Package = require './package'

module.exports =
class ThemePackage extends Package
  getType: -> 'theme'

  getStyleSheetPriority: -> 1

  enable: ->
    atom.config.unshiftAtKeyPath('core.themes', @name)

  disable: ->
    atom.config.removeAtKeyPath('core.themes', @name)

  load: ->
    @loadTime = 0
    this

  activate: ->
    return @activationDeferred.promise if @activationDeferred?

    @activationDeferred = Q.defer()
    @measure 'activateTime', =>
      try
        @loadStylesheets()
        @activateNow()
      catch error
        @handleError("Failed to activate the #{@name} theme", error)

    @activationDeferred.promise
```
assistant