Cascading Style Sheets (CSS) is a custom CSS code that overrides the default CSS for themes.

Javascript (JS) is a Javascript code that allows you, for example, to add a chat window to your online store using javascript. Third-party services usually offer predefined codes to paste into the code fields.

Metadata refers to meta tags. They may be necessary, for example, to confirm to Google that you are the owner of the website. The meta tag is usually delivered as a single line of code where you can copy only the name and content parts in the fields reserved for them in Finqu.