This theme offers you a nice custom designed Error 404 page that you can change the various elements within it. To give you a quick peek at the error page, here is a screenshot:
If you decide you want to make changes to this, you can go into the customizer and customize each element. However, you may need to create some custom CSS if you need to change anything more than what the customizer options offer.
- Go to Appearance >> Customize >> Error Page
- Change the image to your own, otherwise the default image that you see above is included.
- You can also change the colours by using the colour selectors found in the Error Page settings.
- Click “Save & Publish”