src/DevTools/Tool.js

import Class from 'licia/Class'

export default Class({
  init($el) {
    this._$el = $el
  },
  show() {
    this._$el.show()

    return this
  },
  hide() {
    this._$el.hide()

    return this
  },
  destroy() {
    this._$el.remove()
  },
})