```ruby
require 'capybara'
require 'capybara/cucumber'
require 'selenium-webdriver'
require 'site_prism'
require 'rspec'
require 'yaml'
require 'capybara/poltergeist'
require_relative 'helper.rb'
require 'imatcher'

BROWSER = ENV['BROWSER']
ENVIRONMENT_TYPE = ENV['ENVIRONMENT_TYPE']

## register driver according with browser chosen
Capybara.register_driver :selenium do |app|
  if BROWSER.eql?('chrome')
    Capybara::Selenium::Driver.new(app,
    :browser => :chrome,
    :desired_capabilities => Selenium::WebDriver::Remote::Capabilities.chrome(
      'chromeOptions' => {
        'args' => [ "--start-maximized" ]
      }
    )
  )
  elsif BROWSER.eql?('firefox')
    Capybara::Selenium::Driver.new(app, :browser => :firefox)
  elsif BROWSER.eql?('internet_explorer')
    Capybara::Selenium::Driver.new(app, :browser => :internet_explorer)
  elsif BROWSER.eql?('safari')
    Capybara::Selenium::Driver.new(app, :browser => :safari)
  elsif BROWSER.eql?('poltergeist')
    options = { js_errors: false }
    Capybara::Poltergeist::Driver.new(app, options)
  end
end

IMATCHER = Imatcher::Matcher.new mode: :grayscale, tolerance: 1
```

Add preferences to chrome maximize
user
```ruby
require 'capybara'
require 'capybara/cucumber'
require 'selenium-webdriver'
require 'site_prism'
require 'rspec'
require 'yaml'
require 'capybara/poltergeist'
require_relative 'helper.rb'
require 'imatcher'

BROWSER = ENV['BROWSER']
ENVIRONMENT_TYPE = ENV['ENVIRONMENT_TYPE']

## register driver according with browser chosen
Capybara.register_driver :selenium do |app|
  if BROWSER.eql?('chrome')
    caps = Selenium::WebDriver::Remote::Capabilities.chrome(
    'chromeOptions' => {
      "args" => [ "--window-size=1600,1300"]
    }
  )
    Capybara::Selenium::Driver.new(app, {:browser => :chrome, :desired_capabilities => caps})
  elsif BROWSER.eql?('firefox')
    Capybara::Selenium::Driver.new(app, :browser => :firefox)
  elsif BROWSER.eql?('internet_explorer')
    Capybara::Selenium::Driver.new(app, :browser => :internet_explorer)
  elsif BROWSER.eql?('safari')
    Capybara::Selenium::Driver.new(app, :browser => :safari)
  elsif BROWSER.eql?('poltergeist')
    options = { js_errors: false }
    Capybara::Poltergeist::Driver.new(app, options)
  end
end

IMATCHER = Imatcher::Matcher.new mode: :grayscale, tolerance: 1
```
assistant