Customizing the GraphiQL web interface

[mrogan]

I see from the graphql/graphiql README that I can customize various UI elements like this:

<GraphiQL.Logo>
    My Custom Logo
</GraphiQL.Logo>

How do I go about that with graphql-java-kickstart/graphql-spring-boot? I can set certain values via application.properties/yml such as pageTitle, defaultQuery and editorTheme. But this approach does not extend to children such as Logo, Footer and Toolbar. (The later being an interesting way to add a custom button to the toolbar.)

Can you advise whether I can "set the children" in any way? Or how I should approach this in general?

Thank you